When we had our family pictures taken, I knew I wanted to display them in our home but I didn't necessarily want to buy matching frames. I wanted them to go together but not be so matchy matchy so I mounted them on canvases. I am pretty sure I saw this somewhere else, so I can't take credit but here is how I did it.
Here is what you'll need:
-spray glue
-canvas in size of photo. I bought mine at Joann's when they had them on 50% off. Don't ever pay full price because they go on sale often.
-black paint (optional)
-print of your picture. We did 11x14" which seems huge but when its up on the wall its not so big. I would love to do one big poster sized one one day. Costco prints a 11x14" for around $2.87.
(the photo display in our living room-see 11x14" is not so big)
1. Paint canvas. I painted mine black but you don't have to.
2. When paint is dry, spray with glue. Wait a minute so the adhesive isn't permanent*.
3. Place photo on canvas and smooth from the center out.
4. Hang on wall.
Tips: One thing I found is that if all the pictures have a black and white or lighter color scheme, it won't seem so chaotic. Harmony is key. Also be aware of which way the print will need to hang. If you want a square shape or all of them to line up in a row, you'll have to pick pictures accordingly. Playing with size could be fun too-mix big and small sizes.
*I wanted to be able to switch out the pictures so I made sure I could easily peel the picture off and replace with another one.
We started with rice cereal. I think his expression says it all. What is this crap? 
Two days of that led to sweet potatoes. And he was starting to get it-well at least he would eat it off his bib. 
Next was butternut squash and the boy went wild. He downed the whole jar. He also liked peas and carrots. Now he eats one jar a day like a champ. 
Yummy carrots.
