Set the date when everyone at work or community agrees to wear something completely unpredictable. Dress to impress and pay for the priviledge. 

Can you knit? Or are you a floristry fan? Host a get together for an afternoon and share your skill for a donation or sell your creations to friends. 

Calling all pop trivia champions and random fact enthusiasts. Whatever your specialist subject, gather your mates to play the Stand Up To Cancer Quiz on an Amazon device.

Take part in a two-week at home fitness challenge. Planks, push-ups, burpees - anything goes here.

Everyone loves a good feed so invite your mates over for a roast and set a price for them to enjoy the feast or encourage friends to donate what they think the meal is worth.