Skellzies: all it takes is chalk, bottle caps and a sidewalk. Ray and Dennis Vignola, authors of NEW YORK CITY STREET GAMES (MIG Communications), play it like this:

1. Draw the field, fitting it within a sidewalk square or similar area.

2. Starting from behind box 2, players place caps on the ground and, using their index or middle fingers, take turns flicking them into the numbered squares, beginning with box 1. Upon making "onesies," players go again, shooting for "twosies" and so on, until they miss.

3. Hitting another player's cap allows you to place your own cap in the box you were shooting for (except when shooting for "ninesies").

4. If you land in Poison (marked by skulls), you lose three turns, unless someone hits you out, or you land on one of the four diagonal lines.

5. After ninesies, players shoot the numbers in descending order. Once across the start line, players become Poison. Each tries to hit the others, knocking them out of the game. For them, landing in Poison now has no effect.

6. The last player left is the winner.