where can I buy food colouring in bottles with droppers?

[Rebecca41]

Does it exist?

DS likes to have his banana milkshake different colours, and frankly I'll do anything to encourage him to eat fruit in any form! But I'm sick of getting colouring everywhere whenever I open the bottles. It always seems to stick in the lids, gets on my hands, then clothes etc. Yesterday I knocked over an open bottle of red colouring, the kitchen was like a scene from Reservoir Dogs!

So, do they make this stuff in handy dropper form?

Thanks

[MonsterousNasalPustule]

Gel form