Have a house party
Have a big birthday party for family and friends
Have a UV paint party
Rent a Party Canal Boat
Have a foam party with a bouncy castle and a BBQ
Hire a Party Bus
Rent out a club for the night
Blow up 18th birthday balloons and put different tasks in each one
Host a Masquerade party
Hire a marquee to host your party
Have dinner with Family and Friends in a restaurant.
Have a bonfire with your friends if the weather is right!
Go on a murder mystery night
Put up photographs of the person whos birthday it is around the room
Hire a stripper
Have a beach party with a bbq, music and maybe some cheeky volleyball
Have a casino themed night
Go clubbing at your local night club or in the city
Have a neon themed party
Get a polaroid or disposable camera for everyone to snap photos with.
Use twinkle lights to decorate meal area
Rent a beach house with friends
Write a list of 18 things to do for your 18th
Have a this is your life so far party
Have a karaoke party
Have a cocktail party
Find a rave or weekender to go to
Play adult pass the parcel - Put rude/joke gifts inside
Have a Shisha pipe party
Have a pool party
Have a few large tubs of retro pic 'n' mix for people to nibble at
Go to or host a roller skating disco
Go to a strip club
Have a prom party with a posh dinner and dance
Invite 18 guests/friends
Have a disco or a live band
Have a garden party
Rent a bouncy castle and/or some sumo suits
Hire a limo to take you and your friends to your destination
Have a kids party with pin the tail on the donkey, musical chairs and party bags
Have a party on a boat.
Organise a treasure hunt around London
Have a Luau (Hawaiian themed) party
90's themed party, for those born in the 90's!
Have a huge sleepover
Hold a fancy dress party for your birthday party and take lots of photos!
Go to a concert with your mates
Go shopping for the day with your close girlfriends!
Have people write you letters on 18 things they advise you to do or not to do
Throw a party where everybody is wearing black and the birthday person is wearing colour
Get a team together and go to your nearest Laser Tag venue
Get a local takeway meal delivered
Do a childish party e.g party rings jelly and ice cream to remind them of their childhood
Have a quiet night in with the other half
Get a Domino's Pizza, Pizza Hut Express or another local Pizza takeaway
Have a specific themed party and give everyone a character to dress as on their invitation
Paint an old throne looking chair in gold and get everyone to take photos in it at the party
Hire the exclusive use of an ice rink for your party venue
Have an arabian themed party!
Hire a soft play centre (if anywhere will let you!)
Toast with a glass of personalised champagne and have a bowl of strawberries with cream for people to help themselves to.
Hire a psychological magician/entertainer to wow the party guests
Have an adult game of pass the parcel - wrap up something novelty and hilarious
Play adult spin the bottle
Hire a leisure centre swimming pool (if you find one that allows this)
Hire an ice cream van to attend the party venue
Have a mask party, where everyone dresses in fancy dress and wears masks
Play strip poker
Enjoy looking at all the baby/child photos with friends and family
Have a Burlesque fancy dress party!
Have a sleepover with your friends
Put up a tent in the garden, have a sleepover in it and do americanised activities like making smore's
Eat a lot of cake... Maybe even play cake eating challenges but preferably not combined with drinking games!
Put a small letter of things you like about the person who is 18 in a clear 18 balloon, once it deflates they can pop it and read the message.
Organise a picnic in a special or relaxing environment with close family and/or friends
Have a marvel theme party
Go bowling and don't stop until you get 18 strikes!
Have a quiet gathering to celebrate
Have a hot tub party
Have a Toga party!
Make a pinata with old newspapers, flour, water and a balloon. Fill it with sweets or anything you want.
Organise a special car (eg. Porsche) to take the birthday person to their meal or party
Have a poker night with everyone dressed in suits
Play darts till you get 18 bullseyes (or pass out - whichever comes first!)
Have an Indian themed ball
Put up a 60's themed party
Garden party with a marquee maybe (smart dressed)
Have a custom ice sculpture luge made with alcohol running from it that people can help themselves to