U will have to narow down ur such friend. Atomizer heads r used on everything from nazal spray to colone bottles. Btw I must ask. R those delightful fruits urs?
I agree with zuuluu, you need to be more specific how you are defining atomizer. I`m having trouble picturing how someone could be building this without having decided on which heads to use as they will dictate what the rest of the hardware has to do.