Decorations out of clay.

[Stroker]

I have some Crayola clay I would like to make cool stuff with it. I would use enamel paint and than clear coat poly it a couple times ,would this work?

 

[V227]

As long as you completely seal your creation with aquarium safe Polly it probably would be okay. The crew on "Tanked" TV show seal unusual items for aquariums on a regular basis.