Some guinea pigs may enjoy nibbling on oats or dandelions. The cage should always be kept clean with a good supply of food and a water bottle. There are several different types of cages to choose from. Another popular cage is the wire kind that you can buy at a pet store, this cage is ok but not all that great for the cavy. If there is a metal grate on the bottom this can really hurt your pet so be sure to take it out.
Some people keep their guinea pigs in rubbermade tubs or kiddie pools.
A kiddie pool is good but be sure that your pet can't climb out to go exploring. They are dust free, fluffy, and absorbent. You can buy these at almost any pet shop for a reasonable price. These are supposed to be great bedding, too. These become soiled very easily.