I've got quotes which will mean we can do this for £1,000 including a 7m-long blimp, printing, plus enough helium to get it in the air for its first 2 or 3 flights. We're already a quarter of the way to that figure.
Paypal is far and away the easiest way for me to collect the funds, but cheque is also fine if that's easier for you. Send payment to stu@corkyball.co.uk, which is also the best way to get in touch if you want an address to send cheques to.