The kids will love this colorful math work for number recognition. The Elementary Math Maniac: Quick and Fun Math Practice for Little Kids. Another cute way to show number recolonization and one to one correspondence.
Kelly's Kindergarten: Can't get much simpler: beads, pipe cleaner and "number flags" glued to the top create this easy peasy counting center. To stick the numbers to the top, blank white labels can be folded in half over the top of the pipe cleaner.