Now then children - let me teach you what to do with Borage flowers - you put them in your Pymms ;D Duh - Now don't tell me you don't know what Pymms is :'( I have never actually swallowed them - or at least I hope not - but they are so pretty. Mmmhh !! Now that I think of it - I'm sure in all these years of my Pymm's drinking I must have swallowed a couple :-[ Also if you have time - you can pick the flowers and put them in ice trays with water and freeze them and put them in your Pymm's - Hick!! sorry am I repeating myself :-\ or other drinks and impress your friends. That's about the only use I know for them.
Sorry - that's my 2p - I think its quite late and I should go to bed now ::).... Me and my big mouth!