The same idea as Clock Buddies for partnering, but why not use your "smart phone" and have your friends on speed dial? Have students find 10 other partners and write their names in on the buttons. Be sure to have students write their name in their partner's button (i.e. If Bob and Lisa both want to partner, they should both write each others' name on #4). Then simply tell them to call their #4 partner for a prearranged selection. Spend 15-20 minutes at the beginning of the year for instant pairing for the rest of the year!