Sheets of stickers
Hand each person a sheet of at least 6 stickers (for inexpensive ones, try office dots, free address labels or even 1 cent stamps).
Have everyone scatter to different areas of the yard. On the count of 3, players must try to tag one another with a sticker – ideally without getting stuck themselves. Some rules you can use (and you can make up some of your own) are: You can’t tag the same player twice in a row. You can’t pull stickers off your body to put on someone else. You can designate a tree (or other area) as a base, and so long as you’re touching it, no one can tag you. Once everyone has used up all of their stickers, the person with the fewest on him/her wins!