15. Massage night
This is the best way to relax and get rid of all the stress you have accumulated. You could take turns and give head massages, foot massages or back massages. Buy some nice scented massage oil, set the mood with some music and relax.
16. Painting night
This is going to be messy. Be sure to have loads of newspapers on the floors and put on some old clothes before indulging in a painting night. You could paint t shirts and mugs; and gift them to friends.