For candles made at home for fun you can be creative and find common items for molds. Some of my favorite molds to use are yogurt cups, Dixie cups, frozen juice cans, and milk containers. You can try anything you think that would look good shaped as a candle. If any time the candle gets stuck in the mold try placing it in a freezer for a little while the wax will shrink a little and it should come out if you tip the mold upside down and rap it on a table. Votive Molds Various Metal Molds Color Candle dye chips are sold at many craft stores.
Dye comes in liquid form that is highly concentrated.
Some people use crayons but don't over do it because it can clog up the wick and won't burn right. Liquid Candle Dye Scents Liquid candle making scents are available in 1oz bottles or larger. Scent strength does vary according to the scent. Some people try using essential oils but be careful of scents not made specifically for candles because they may not blend with wax well. If you have pre tabbed wicks center them inside the mold and use a little melted wax to hold them in place.