How can I make a 14 yr girl b-day party the best ever without spending tons of money?

Have a huge scavenger hunt. Make a list and you have to have them like get a picture with a boy. find fre samples of like... for example a free fortune cookie or something. split them into two or more teams and whoever has the most points win. this is what we did in my 8th grade class. then when you get home have a bbq or go have a picnic!!

your never to old to have a scavenger hunt, i see 17 year olds going around at the mall doing it too!

I think you should definitely have two parties cause the 13 year old is now a teenager and she will think it is so uncool to have a party with an 11 year old. Unless they have so much in common that you can put the two together.

You could have a cookie making day.

Make from scratch or get frozen dough.

Buy several icing tubes & decorations.

Have prizes for best cookies.

Or if that's too messy, do bead ornaments.

They could model their own creations.

Adults judge, have simple prizes for best:

earrings, bracelets, necklace, brooch, etc.

Pass the parcel dares, i know it sounds awful but trust me its amazing if you have some good dares (find the sweet in the flour uses only your nose etc..) it will be brilliant. AND it's not expensive at ALL!!