The cost for one set and tooling is £90, and each subsequent set will be approx £40 (although depending on numbers we should be able to get this down further).
So the cost will be worked out at (90 + (number of sets x 40ish)) / (number of sets + 1).
For example if two people want a set it would be (worst case):
(90 + (2 * 40)) / 3 = £56.67
Or if four people want a set = £50
Hopefully this made some sort of sense

The badges will be supplied and manufactured by Argon Creative (www.argon-creative.com).
Payment will be made to me be either by paypal or bank transfer.
To avoid complications, extra costs, and delays with delivery I will get all the badges delivered to myself and then post them out standard delivery in an envelope (can be sent tracked/signed at the buyers expense).
Let me know if interested, ta.