To help out there is 50 in a pack, i used over 1 bag and started on the 2nd but didn't use all.. I'll upload some pics of the base the best i can get, take a look and pick a number between 50 and 100 and the 1st one to get it right wins.
Simple enough and shouldn't take long.
1 guess a time please, thats about the only rule i can think of...
Link to diary if you wanted to take a look in there to see more ;).... viewtopic.php?f=26&t=10&p=3431#p3431