I agree with xAnnaBannax... sure you have to charge for what you are worth! It's your time, your products! You didn't get them from an apple tree in your back yard :wink2:
So imagine, if you give away your nail art like that, people will get used to it and demand for it, and you know it's not always just a few thingies that you lay in your acrylic, what about hand free painting and things like that?
I charge around 35 for a full set, around 20 for rebalances or naturals with overlay. For one nail with nail art (glitter and little flowers or stuff), I charge around 0,6 and if they want all 10 of them, it's 7 times more one nail. And if I do nail art with coloured gel (acrylic paint in your case), the price is double. So who want's, he gets. Those paints and glitters and stuff costs money, and you surely don't have just one, you have to have more so they can choose from... and those dotting tools and art brushes and stuff... ah... $$$!
I'm not trying to be rude or unconsiderate, but nail art is not bread and butter, so if someone wants it, so....
And as for glitter tips, I don't know how much you pay for those, but surely do incorporate that in your price. I pay much more for mine than I do for usual tips, so it's not always just a 'shortcut' to nail art.