Macaroni "beads" are great for lacing projects, counting, sorting, jewelry making. Place 2 cups of macaroni pasta in a quart size Ziplock, squirt in a couple of squirts of Liquid Water Color, seal the bags and shake, shake, shake!
As soon as the pasta is evenly colored, spread out on newspaper to dry (which will be quite soon, it dries fast this way). Some darker colors may need a second go round (especially black!)
You can make several batches of rainbow colors, or specific color schemes (pinks and reds, orange and black, etc). String on lanyard lace, yarn, pipe-cleaners, and ribbon.