How to paint a child's white partilce board toy box? I'm painting a white bit board toy box for my new...

I'm painting a white bit board toy box for my new second cusion to be but I'm not sure of how to start or what mode of paint will work on this surface and at the same time be undamaging for the child. I'm just drawing on some designs on the surface of a few areas on the project. Can anyone help me?
PLEASE! Thanks within advance ;}
Answers:    Many products will coating even if primed. I've had actual good results fine art particle board by priming it next to a primer made by Glidden the primer is called "Gripper". Home Depot sell it.
After the primer is dry you can paint with a paint recommended for that purpose. You will find a big selection of colors at Home Depot too.

Good luck
Use non toxic paints! I used it on some toy blocks I made for my grandson 17 years ago and they turned out brilliantly.

I found the paints at a crafts store, so, I found a link for Michael's that might serve you.

Good luck and enjoy your to be cousin :)