Love this idea. Good for welcome drinks. Although... Our friends are... Rockstars. They may well crawl into the chapel :D Self-serve Mimosa Bar (or any cocktail drink works!) so your guests can add as much or as little as they want!
Lawn Jenga: All you need is 6 pieces of 2x4x8 lumber cut into 10.5" pieces. 54 pieces total. Sand the pieces so you don't get any splinters & if you want, you can spray paint the wood or paint the ends in wedding colors.