Don't knit? Already made critters are here:
http://www.etsy.com/shop/cheezombie?section_id=5843656
And many of the rascals pictured in the pattern listings are still around, so if you see one you like, feel free to inquire about getting one of your own.
------Are you on Ravelry? Join the new Slug Love group http://www.ravelry.com/groups/slug-love
FLAT KNIT versions of the Garden Slug, Eddie Lizzard, Seahorse, and Sheepish, yay! No double pointed or circular needles to worry about, just pick up your regular needles and you’re good to go! They even have their own section in the store
http://www.etsy.com/shop/cheezombie?section_id=7140120