ok ive used the search on a safe way to coat a skull to put in an aquarium and have got many different answers. can i just spray this thing with clear rattle can paint and let it cure, and for how long? im not rich so cheaper would be better if possible. i went to lowes and the guy said that nothing would work to do this- which i know is b.s. oh and it MUST be a clear coating please help. remember CHEAP please!