Have a house party
Have a big birthday party for family and friends
Blow up 21st birthday balloons and put different tasks in each one
Have a garden party
Hire a Party Bus
Host a Masquerade party
Have a this is your life so far party
Rent out a club for the night
Have a cocktail party
Have a party on a boat.
Hire a marquee to host your party
Have dinner with Family and Friends in a restaurant.
Get a polaroid or disposable camera for everyone to snap photos with.
Write a list of 21 things to do over a few days for your 21st birthday
Have a Shisha pipe party
Throw a party where everybody is wearing black and the birthday person is wearing colour
Rent a beach house with friends
Go on a murder mystery night
Hire a stripper
Have a casino themed night
Have a neon themed party
Rent a Party Canal Boat
Use twinkle lights to decorate meal area
Put up photographs of the person whos birthday it is around the room
Have an adult game of pass the parcel - wrap up something novelty and hilarious
Rent a bouncy castle and/or some sumo suits
Have a UV paint party
Have a few large tubs of retro pic 'n' mix for people to nibble at
Enjoy looking at all the baby/child photos with friends and family
Hold a fancy dress party for your birthday party and take lots of photos!
Hire a limo to take you and your friends to your destination
Have a pool party
Get drunk with your friends and not remember anything in the morning
Have a disco or a live band
Have a hot tub party
Have a marvel theme party
Host a barn dance. They're so much fun and will have everyone up dancing and laughing their heads off.
Have a Burlesque fancy dress party!
Have a bonfire with your friends if the weather is right!
Go to a strip club
A formal dinner party and dance
Have a karaoke party
Paint an old throne looking chair in gold and get everyone to take photos in it at the party
Do a childish party e.g party rings jelly and ice cream to remind them of their childhood
Play adult pass the parcel - Put rude/joke gifts inside
Play the card game 21 as you are actully turning 21.
Play adult spin the bottle
Go clubbing at your local night club or in the city
Have a specific themed party and give everyone a character to dress as on their invitation
Go to or host a roller skating disco
Have a kids party with pin the tail on the donkey, musical chairs and party bags
Garden party with a marquee maybe (smart dressed)
Get a team together and go to your nearest Laser Tag venue
Have a prom party with a posh dinner and dance
Find a rave or weekender to go to
Have a beach party with a bbq, music and maybe some cheeky volleyball
Have a quiet gathering to celebrate
Organise a treasure hunt around London
Have an Indian themed ball
Organise a special car (eg. Porsche) to take the birthday person to their meal or party
Hire a psychological magician/entertainer to wow the party guests
Toast with a glass of Champagne and have a bowl of strawberries with cream for people to help themselves to.
Organise a picnic in a special or relaxing environment with close family and/or friends
Arrange with the local newspapers to have the last 21 years, DOB, of publications printed off
Go to a concert with your mates
Have a Luau (Hawaiian themed) party
Have a Toga party!
Hire an ice cream van to attend the party venue
Put up a 60's themed party
Get a Domino's Pizza, Pizza Hut Express or another local Pizza takeaway
Have a poker night with everyone dressed in suits
Eat a lot of cake... Maybe even play cake eating challenges but preferably not combined with drinking games!
Have an arabian themed party!
Play strip poker
Have a custom ice sculpture luge made with alcohol running from it that people can help themselves to
Have a quiet night in with the other half
Hire the exclusive use of an ice rink for your party venue
Get a local takeway meal delivered
Go shopping for the day with your close girlfriends!