See how many different things can be squeezed into a standard matchbox
One matchbox per six
Send the Cubs outside in their Sixes with one empty matchbox per six. Give them a fixed time period and a fixed area to look in (30 mins in the local park).
One point for each different item - you can be pedantic - all leaves count as one - or you can say each different type of leaf is a point.
Some Cubs will claim the air in the box as a point. Some will get it wet and claim water in the box.
We don't allow live animals (even mini-beasts!).
Small prize for the winning six.