Do you do AR accelerated readers in your classroom? This is a chart I developed a few years ago where students put up a sticker for every test they pass. It has 175 cells going up and 30 along the bottom. I am leaving as an excel document so it is modifiable. It is shaded every 10 spots. In my classroom we take weekly trips to Candyland. For every 10 tests passed a student gets to pick a candy out of the candy jar. Last year I had a student pass 285 test so I had to modify the chart and print a second one. One suggestion is to put the kids names on it in the same order that the AR report prints them. I then use a sharpie to mark the candy winners on the graph every week. This helps keep honesty in check. The only negative to this is trimming it and taping it together. This year when I went to print it I took out some columns then adjusted paper settings. We can print directly to our photocopier. So I set the paper to 11 x 17. I had to feed it through the bypass tray. Instead if taping 14 or more sheets together I only had to tape 7. It looks much better than last years. Some years I have laminated it. However since it is as tall a door it can get crinkly as it travels through the laminating machine. I put it on the inside of my classroom door.
I finally took a picture of the one on my classroom door as well as last years. I post last years as a challenge to see if anyone can beat the previous years champion. I have someone this year who says his goal is to take 300 tests.