Pop beads are plastic beads with a hole in one side and a small knobbed projection on the other, so that one can be connected by being "popped" into another. When lots of them are strung together, they form a sort of play jewelry for little girls. I had some when I was a kid, and I loved them and was very proud of them. :)
A Tootsie Roll is a chocolate-caramel taffy candy. It can also be used as an endearment for a woman: "my sweet tootsie roll."