Budget Costuming
 

Remember that even though you buy an model for cheap, and I'm talking about $20 or $30, the paint for that model may cost upwards of $40 for even a simplistic model. Some model are simplistic snap kits where they are pre-painted and only need to be assembled, possibly requiring some glue for smaller parts. You can order model paints from testors, I use acrylic paints because they look better in my opinion and they have a quicker  dry time which allow you to get more work done.

-Mike