I finally finished making rekenreks for my kinders to use during our number talks. I started making them in September. My husband cut a quarter inch thick board into 4" by 12" pieces. It only took one big piece of wood to cut out 20 student rekenreks and one larger teacher rekenrek. I have to finish up the larger teacher version. I was worried about splinters even after sanding the sides down. My solution.... pretty duct tape. I had to buy one bag of red and one bag of white pony beads and some elastic cord. They aren't perfect, but they will last a while and serve the intended purpose. My son had fun playing with them and wanted one built to keep at home.
I would love to know/see how others have made rekenreks. If you have made them, leave me a comment or the link to your blog so I can check them out.