I started a new game with the boys.
I give them one bag. The all feel it for a while then they have to come to a consensus on what figure it is.
If they do not agree they have to convince the disbelievers.
When they do all agree I open the bag.
If they are right, they get a new bag and we continue
If they are wrong, game over
I now do not bring enough bags home, hooray for me
The ones we do not want (series 1 trophy man) I will return unopened.