"Walk the Plank" Relay. PREPARATION: Need two boards. My neighbor had a scrap piece he let me have to cut in half to make two. I thought about elevating the board on concrete blocks, but decided that with my group, the potential for an excited, racing kid to fall off and skin a knee was too great for my comfort. If you want to elevate the "plank" you'll need some concrete blocks. You could also draw a plank on a sidewalk with chalk and make sure the kids walked inside it. I balled up foil to make two balls for each guest - the ingots. I made two treasure chests from four grocery bags. I rolled a collar down on each bag as far as I could go. I made two cardboard "hinges" from the sides of a cereal box -- I scored each cardboard at the half and glued it to the inside of the bags. I drew "wood" with a black Sharpie on the bags and made yellow construction paper locks and handles. You also need two boxes or bags (one for each team). You could stop there, but I also made two pirate "caves" to put the chests in.   [Pirate Cave directions: For each dome, you need 100 sheets of double newspaper. Spread four sheets of newspaper together as if you are reading it. Begin to roll a tube of newspaper from a corner. You can use a pencil to guide you, but don't try to roll it around the pencil. Tape tube shut with clear packing tape. Make twenty five tubes. Cut off floppy ends. Then make tubes all the same size. With fifteen tubes, make five triangles and staple (heavy duty stapler) or tape together end to end. Take five tubes and staple or tape their ends together so the tubes radiate outward from a central point. It will look like five spokes or perhaps a flower -- this is the top. Put the top aside. Using the last five tubes, staple or tape tubes to join the peaks of the attached triangles together and have the last of the five tubes attached to the last peak and hanging off into space. With another person, stand up the structure and form it into a five-sided thing. Staple or tape it together. Then get the top and attach the ends to each triangle peak. Your structure will now stand and you can cover it w/tissue paper or leave it plain. Kids up to about age 10 can crawl through an open triangles to get inside.] TO PLAY: Make two teams. The object is to be the first team to get all your silver ingots from your treasure chest to your team's box. Set up planks. Put foil balls in chests (two for each guest if a relatively small party, one for each guest if a large party) and put chests at end of route (or at end of route inside newspaper "caves"). At go the team members walk the plank, run to the "cave" crawl in and get a silver ingot, run back, put ingot into their team's box and tag the next player. If a small party, each player will go twice.