Hi Everyone!!

Seen a few projects on instructables and youtube using coloured pencils cast into clear resin like this: 

or like this:


I know that the vases are turned on a wood lathe, which is a bit out of my reach for now but i am thinking of starting with something simple like a set of chunky coasters or similar before working up to something bigger - perhaps shaped by hand initially.

I was thinking of using GlassCast or a similar epoxy casting resin for the clarity.   

Now my question!! Does anyone know if it is really necessary to degas the resin either before pouring or once poured into the pot of pencils?