I do kids parties and love them.
Firstly I tailor the party to the age of birthday girl and what they're wanting, to give you an example of one I did recently it was for an 11 year old girl and I charged £10 per head. I did file, polish and nail art on each child (6 in total which is a good number) then afterwards applied glittery make up to their faces and glitter spray to hair and arms. I also apply a body gem to each (where ever they want it but usually in corner of eye).
At the end of party they all get a goodie bag. Usually in the goodie bag they get 1 x jewellery (usually bracelet), 1 x make up (usually eyeshadow or lip gloss) and 1 x sweet (usually lolly), I also put a voucher in the goodie bags for 20% discount for their parents to use against one of my treatments, this works well as it spreads the word around too. Make each bag different as this works well.
If the children are older I tend to do semi-perm tattoos instead of make up.
With the nail art I have a board of approx 12 nail art designs on (specifically for smaller nails) that they can choose from and this is a lot of fun for them to choose at beginning of party, if any design is chosen at the party more than once I use different colours so each girl looks different. I will try and paste a pic of my nail art board to this so if it doesn't work let me know.
To make it work financially you need min of 5, usually my parties are 5-6 and last for 2 hours. You also need to set a limit to each goody bag and materials used. To be honest if you start buying alot of stickers it'll cost you more than handpainting designs and I find kids prefer the handpainted art instead.
You also need to ask the parent who is organising the party to get permission from each parent for their child to have nail art and make-up applied. I also get the organiser to sign a form I designed at beginning of party to declare she has done this etc to cover my insurance. You also need to check for allergies of children too ie if one child has excema on face I'll adapt make up.
I love doing kids parties because they're the most enthusiastic clients to have. If you stick to your budget too you can earn good money for 2-3 hours work.
Any other questions PM me because I have gone on a little too long now!!!!
PS can't attach image, can anyone help if I e-mailed it to them????