So after mine and 
We want as many people as humanly possible to see this to make it worth the investment. So my suggestion is Mint Festival in Leeds on the 23rd September. If you guys have suggestions of bigger open air events that could have a better turnout. Please comment below!
It charged by the hour including take off and landing which gives around 20 minutes of "useful" visible time.
Prices for a five feet high letter display, up to 32 characters (including spaces) £595 + VAT. Example;
The second option is a high-resolution digital banner approximately 15' - 20' high and 55' - 65' wide which comes in between £750-£995 + V.A.T An example;
Ive contacted one of the old event managers from Mint Fest to ask exactly what the crowd numbers for Mint Festival will likely be so we can calculated cost per view. Ill update the post with his response when I get one.
I appreciate this is one of the more expensive ideas out there, and cost / view wont be as good as @Jerrybanfield's £2000 ad spend which netted 1m views. But since there was interest and it is pretty special I thought Id put it out there and see what the general consesus was on it?
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