$5.80-$2.19 Super Pet Little Crab Beach Ball Sponge, 2-Pack - The Little Crab Beach Ball Sponges are ideal to help humidify your pet hermit crab habitat. Two beach ball colored sponges are approximately 1.5 inch in diameter. Adds humidity to your pets home enviroment and also serves as a fun playtime toy that your hermit crab can climb on and move about its home. http://www.amazon.com/dp/B000HHFB96/?tag=pin2pet-20
Mac's Creations Grape Driftwood Log, PetSmart, Lg/$9. Perfect for a DIY Hamster Desert/Exercise box. Hamsters can use it for climbing, hiding or basking. Looks good, too. Good reviews. Measures: About 14"L x 4"W x 3"H. Individual pieces may vary in size. Requires a very big DIY Desert/ Exercise box, though.