I put some things onto Redbubble ages ago and to be honest I forgot i'd done it. A few days I got an email saying i'd sold something.
The sale details:
Retail Price: £1.81 (includes £0.30 VAT)
Manufacturing fee: £1.51 (includes £0.25 VAT)
Total Margin: £0.25
Total VAT on Margin: £0.05
You'll receive: £0.25
Time to retire.