Here is something else you can play with . Make a plunger for a hot glue gun . Just like you were going to use it for a hypodermic syringe . Take a worm or a sprue the size of a glue stick Poke it in the glue gun insert the plunger . When its hot press the plunger put drops in your mold before you shoot it . Stick it to lures and leave spots eyes ect. The thing about plastic is creepy crawler sets have come a long long way . We can play with them until we are 80 or 90 yrs old and nobody suspects we are still 12 yr olds in an old package .