Hold both ends of the slinky, one in each hand. Pull them apart in opposite directions, just enough that you can see exactly where the tangle is. Keep holding them in that position. This method is for slinkies with only a few of its loops tangled. If your slinky is too tangled to form a straight line when pulled apart, you can try this with just one small section of the slinky, or switch to the extremely tangled slinky method instead. Hold the other end steady as you rotate. Rotating in one direction will make the tangled loops move farther apart; this is the direction you want. If you start rotating and the tangled loops grate tightly together, stop and reverse the direction you're rotating. Once the tangled loops have some space between them, look closely to see which loop is out of place. Lift that loop up away from the straight line of the slinky. If you keep the slinky stretched apart, the loop should snap back into the correct place as soon as you let go. If it doesn't, pick it up again and guide it carefully back between the right loops, rotating if necessary. This step is easier if you ask a friend to hold one end of the slinky while you do this.
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One-sentence summary -- Pull the two ends of the slinky apart. Rotate one end of the slinky. Lift the tangled loops up to fix them.

If you want to embody the classical zombie type, go traditional. Be a walking, shuffling zombie who is slow and dumb with dead eyes. No specific type of clothing is needed for this type. Use whatever's on hand, such as old jeans and t-shirts. Maybe you want to go for a zombie with a special theme, such as zombie princess or ballerina who's been zombified? Go for a cute identity that's gone terribly, terribly wrong. If you want to be extra realistic, use stage blood. This might be where last year's costume comes in handy--you could zombify it so long as you don't mind destroying it in the process. You can also just be an interesting zombie, making a twist on other clothing. Zombies may have been a cheerleader, a pizza delivery guy, or had been on the way to prom. It can be fun to have a couple, family or group of friends dress as zombies. Some costume competitions have this as a category. Be a zombie pair, such as a zombie bride and groom or maybe a famous couple from history who've come back from the dead. Be a zombie family! Mom, dad, sister and brother can all have fun as undead. Hit up a used clothing store to look for wedding apparel. Have a favorite superhero? Nursery rhyme character? Disney character? Choose a character and turn them into a zombie! Make sure you've got a costume on hand that'll identify you as your character. You could always do something recognizable, such as simple, reworked Little Red Riding Hood costume. This is a great tactic if your costume is worn, or in bad condition. Since you will likely be fatiguing or distressing your costume (see below) it is better to work with items in less than new condition.
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One-sentence summary -- Dress as a "traditional" zombie. Make a special zombie. Create a couple or group theme. Make an undead version of a familiar character.

One player lines up the cue ball behind the head string and aims at the rack. Knock the cue ball into the triangle of balls with force and precision. To execute a legal break shot, the breaker must either pocket a ball, or drive at least four numbered balls to the rail. When the breaker fails to execute a proper break, it is a foul. If the breaking player scratches on his or her shot, then the game has only partially begun. In the case of a foul, the incoming player has two options: accept the table as is and take the next shot, or re-rack the balls for a redo of the opening break. The incoming player gets to choose whether to personally break or to allow the original breaker to try again. If a player scratches on a legal break shot: All balls pocketed remain pocketed. The shot is a foul, meaning that it is now the other player's turn to shoot. The table is open, meaning that the first player to sink a ball without scratching chooses that ball type (stripes or solids) as his or her objective for the game. If a player jumps a numbered ball off the table on the break shot, it is a foul. The incoming player has two options: Accept the table in position. Take the next shot and continue the game. Take the cue ball in hand behind the head string. Shoot or break again, as necessary. If the 8-ball is pocketed on the break, then the breaker may ask for a re-rack, or have the 8-ball spotted and continue shooting. If the breaker scratches while pocketing the 8-ball on the break, the incoming player has the option of a re-rack or having the 8-ball spotted and begin shooting with ball in hand behind the head string. Before groups are chosen, the table is "open." The first player to sink a numbered ball effectively chooses to aim for that group of balls throughout the rest of the game. If you are the breaking player, for instance, and you sink the striped 13-ball, then you are "stripes." Look around for other striped balls that are easy to strike. Your goal is to pocket all of the striped balls (and then the 8-ball) before your opponent pockets all of the solid balls and the 8-ball. Make it clear who is who. If you make a stripe, call out, "I'm stripes!" If you make a solid, call out, "I'm solids!" If you are the first player to pocket a numbered ball, but you sink both a stripe and a solid at the same time: you have your pick between the two groups. Choose the group that looks the most immediately advantageous.
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One-sentence summary --
Break the rack. Know what to do in case of a scratch or foul. Choose groups.