You don't need to have great artistic skills to create a colorful design.
Take this compact for instance :
Pentagon-Lightening Compact Travel Mirror by Bretsuki
Check out other Communications Compact Mirror at zazzle.com
Take this compact for instance :

Pentagon-Lightening Compact Travel Mirror by Bretsuki
Check out other Communications Compact Mirror at zazzle.com
To create this design I opened Microsoft Paint and on the Home page used a Pentagon tool to create that shape.
Then added the Lightening flash, again another preset shape.
Then used the fill tool to color the background and the shapes as required.
Simple and effective.