Auction
Abseil
‘Antiques Roadshow’
Art exhibition
Afternoon Tea

Back sale 
Beard shave
Black tie ball
BBQ
Burns Night
Boxing Match
Bag packing
Bingo

Car boot sale
Casino Night
Car wash,
Concert
Cricket match
Cinema screening
Coffee morning

Darts tournament
Disco 
Dance marathon 
Dog walking
Dinner party

Egg and spoon race (or a full Adult's Sport's Day!)
Exercise class
Easter egg hunt
Eating competition

Fashion show
Family fun day
Fancy dress party/days
Face painting
Football match/tournament

Garden party
Gala evening
Golf day
Games night
Give something up (sponsorship)

Halloween party
Head shave
Hockey match
Hugathon

 International Day Of..' party
'It’s a knockout' competition

Jumble sale
Jokeathon
Jazz evening
Jelly bath
Jumble sale
Jewellery making/selling

Karaoke night
Kick a bad habit (sponsored)
Keep fit challenge
Knitted items making/selling

Lunch party / Shared Lunch
Line dance

Marathon
Magic show
Monopoly challenge
Murder mystery party
Match funding 
(some workplaces have schemes where the employer matches your total; it's worth asking!)

Non-uniform day (school or work)
Netball competition

Open day at work or in your garden
Open air concert
Office collection
Obstacle course

Plant sale
Pub quiz
Ping pong competition
Pancake race
Pamper day

Quiz (in person/virtual)
Quit smoking (sponsored)

Rugby match/tournament
Raffle
Roller skating (sponsored) 
Race night
Readathon (sponsored)

Sponsored silence
Skydive/Skywalk
Swishing – clothes swap
Swimathon (sponsored)
Sports day

Talent contest
Treasure hunt
Tennis match
Teddy bears’ picnic
Tug-o-war

Unwanted gift sale

Variety show
Volleyball match
Vintage clothes sale

Walk (distance challenge or 'miles in a month')
Wine tasting
Wax it challenge (sponsored)

Xmas party
Xmas jumper day

Yoga marathon (sponsored)

Zumbathon (sponsored)
Zip wire challenge (sponsored)