Picnic Games-a mixer

I find that at many parties and picnics people don't mix-they chat with their neighbors or co-workers.I set up and easy game that folks seem to really like.
     I collect old and unusual tools-ones that are difficult to identify.  I place 15 of them on a table or trailer-number each-give couples ( you must play with someone you don't know or are well acquainted with) a pencil- and they attempt to guess the

use of each tool.  After a period of time, we give the answers-they check their papers and we give bottles of wind to the winning couple.  Some of the answers get quite suggestive!