Aha! That seems to do exactly what I was thinking should be possible - I just asked the wrong question. Thanks for the pointer, DR. 
now let me see... lipstick... biro... moisturiser... biro... bank statement... biro... thingy... biro... ah, here we go, a $20 note.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)