What? you say 15% for all that work. Get them to offer you at least 33%, I’m positive they will go for that. Then tell them you’ve reconsidered and want half in order to take part in their little scheme. If they are calling internationally, keep them on the line as long as you can while negotiating an even higher cut for yourself. When you feel they are getting suspicious agree to the last price, then ask if they will take Reichsmarks as currency.