Marbles.
Whenever I walk through a toy store (and in fact, this happens rather often), I stop at the marble section. I love clear glass marbles with strange ornaments in them. The colour is of no importance. After all these years, I still find them to be awesome. Though, no doubt, of little use. But looking at them is enough already; I get sucked into watching how they shine when held against a light.
Collecting stickers.
I love how there are stickers to about every children's film. My mother even buys them for me, though I hardly ever finish a series. It's just too expensive. Nevertheless, to collect them, order them, to know I have them is one of the best feelings in the world.