Everyone gets a ticket for attending, then $1 per ticket, 7 for $5, 15 for $10 ?? What is most expensive item? You can skew the odds many ways, just what would people be willing to spend? How much money do we want to raise? The $90 for the room?
Another option (more tickets used):
2 for $1, 10 for $5, 25 for $10
If tickets are tight, you could do:
1 for $5, 2 for $10, 5 for $20
Probably good idea to have some change to cash larger bills
We should probably have a check-in table, and cash box, and a sign made. I have an acrylic 8-1/2"x11" stand if we want to print up what we decide on. We can also circulate during dinner/before actual meeting. Then do drawing right at end of meeting. If there is extra food, we could "add" some more prizes...
Just some thoughts...
Kermit