I go to my local bingo regularly, and was pleased to see them running a competition on their Facebook page, which only had a few hundred likes and low activity.
The competition was to guess how many £1 were in the picture they posted. This was a full pint glass plus extra coins around it.
Since I had already seen another local competition end with the same pint glass idea, I took their amount and added a few on, then took my guess.
The following week it was announced that i was the closest, only being £9 off the target. Unfortunately I didn't win the money but i did win a Party package for me and 5 friends at the bingo for free.
We were treated like VIPs for the night, didn't have to buy anything, and was given free food and bubbly.
We didn't win on our books, but it was still lovely for us all to get together and share the prize.