A) You want to lightly sand the surface of the raw blank wood before you begin painting.

B) Then, paint the base of the circle of the desired color with the acrylic paints.

Wood blank rounds
Acrylic paints
Artist brushes
Paper nail file
Water based satin varnish
Transfer paper 

C) When the base coat is dry, transfer the image you will be painting onto base with transfer paper. or paint the  image freehand. 
D) Next,  paint your image.
E) When you are done, give your art a coat of satin varnish for protection.

 Free circle printable wood collage sheet 

Materials needed:
Wood blank rounds
Free Project pdf of images
Optional: Satin water based varnish
Directions:
 1) Print & cut the images onto a sheet of white or ivory Cover Stock. 
2) Glue the back of the paper image with Elmer's white glue. 
3) Press the  circle cut image face up onto the wood blank & smooth out any bubbles. 
4) Let dry.
5) Lightly sand all around the edges with a paper nail.


For sizing- When you open the pdf file and print it, you may have to slightly re-size the circle images to fit the size circle blank you want to use. This PDF file provided is sized for 1" circle crafts. Download the file to an editing program to size the circle to your specifications..