Techguy might work for americans: $20 + $5 shipping.For non-americans, techguy becomes costly counting shipping $12 + customs time/cost lottery. You can get a very similar pen from DX (3.79USD WITH international shipping + customs lottery) and find someone to add the IR-led (1 IR-led might cost 3USD in a local store).The pen from ebay (Australia) with shipping AUD7 + customs lottery might break that deal.