Here's how I made my World Of Warcraft Pallet Wall Art:
I drew this freehand, but it could be done using a printer and carbon paper. Be sure to arrange the wood the way you want and secure it to make the drawing or transfer easier. Print the image you wish to transfer, then lay it on top of your pieces of pallet wood with a piece of carbon paper beneath. Trace over it with a pencil. The image will be duplicated on the wood by the carbon paper.
Cut the wood out - specifically, before it is glued and screwed to make it easier to cut. I used a jigsaw. Next, I cut the WoW symbol. I attached it onto plywood that I cut into the identical shape (so yes, more cutting). I did this to produce the raised effect. You can decide how far you want the project raised up and get thinner or thicker plywood.
Glue it all down. I used a lot of PVA glue (like TiteBond). I glued the pieces down onto a similar sized piece of plywood and allowed the project to dry for 24 hours. Once the PVA glue is dry, the bond is stronger than the actual Pine itself. I added screws for further integrity, but it's gonna take a lot of damage before it comes loose!
Finally, I stained the wood (more layers on the background) and sealed with varnish. You could do variations with different tones of stain, or even paints if you chose. The finished article looked great. I think that my World Of Warcraft Pallet Wall Art is an amazing piece for a gaming room/man cave.