Kicking off my 31 days of creepy projects; Here is a a great tutorial on how to build your own weird specimen jars, which is a must have for any lab in any flick or haunted garage. Check it out.
I have tried it myself and found some mini animals that expand to large creatures in water. The overall effect is awesome and each creature had only cost a dollar per one. I plan on making a few in the near future and hopefully will be able to share my results with you at a later date.