Jennifer.........make sure they are clean - Alcohol works great and doesn't leave a residue.
I would prime them with Glidden Ultra-Hide Gripper.
After that - do whatever you want. You might want to do a faux technique or perhaps just paint them.
Whatever you do make sure that you use at least a semi-gloss finish coat for durbility.
Glidden makes some great semi-gloss paints - and don't forget Ralph Lauren Aging and Technique Glaze......
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