Under the Blanket
One person is chosen and leaves the room or out of ear shot. The rest of the group must choose a piece of clothing that the person is wearing. The person returns and lies under the blanket or sleeping bag. That person has to guess which piece of clothing the group has chosen. If they get it wrong, they have to remove that piece of clothing and take it out from under the blanket. This continues until they guess the right piece of clothing. They can then get dressed again.