Should you ever need to make creepy-crawlies in bulk quantities (for fishing or for more mischievous activities), these vintage bait molds would do the trick. Personally, I think the aluminum molds would make for interesting wall decor.
This particular set is available on ebay. There are some similar molds for sale on this site, where you'll also find an archive of vintage mold designs. My crafty 8-year-old self would have died for the "Jillions of Jewels" set.