I wanted my kids to practice their teen numbers by playing a bingo style game. I wanted them to have different cards and I figured that it would be a good idea to let them create their own cards.
I told them to pick any number from 11 to 19 for each column. I told them that they needed to make sure not to repeat numbers in the same column (under the number). The letters and numbers (e.g., A-15) were printed on cardstock and put in a container. I put the ones I pulled under the document camera.
You could use bingo counters if you wanted the kids to play several games, I had mine play one game and they used crayon to color in the numbers that were called.
This product was made using google docs and extensis fonts