If you don't have the money for expensive Photoshop software, but have a scanner and want to make funny photos with yourself and others in it, simply go through your photos and pick out poses of yourself and others that you like. Then get backgrounds from magazines, catalogs, or newspapers and crop your photos. Add yourself to the scene as I have done in my own photo. I used several family photos and product catalogs to make up this and I made a mousepad out of this.
I used leftover photos from my scrapbook projects. I made a memory wall for my son so he can look at pictures of fun times with friends and relatives everyday. The rest of the family enjoys it too.