Watch the video on YouTube : https://youtu.be/zj7BBgAVDTw
Print out these custom stickers for Numberblocks 50s. You can use them on your counting cubes or mathlink cubes to make Numberblocks 50 and 55. This includes 50's guitar which you can print out on a piece of cardboard.
More Numberblocks Printable Stickers (20s to 100) at :