Help!

I've just been back to Pink Petticoat again and bought another download ..... I promised myself I wouldn't buy anything else from them until next month! Ha ha ha! Oh well, those christmas handbags are just soooooooo adorable I couldn't resist them!

Oh, and something else I need help with. Does anyone out there know what is the best paint or similar to put a base coat on those little cardboard/papiermache boxes you can buy (I got mine from Telfords Direct) because I want to decorate them for christmas to use as table decorations but I don't want to cover them with paper because it will make them too bulky and the lids wont fit then! Would acylic paint be best or could I use white emulsion paint?
Any help you could give would be much appreciated. Thank you.