Shops:
http://www.schaeffer-ag.de -> Frontpanels & Tool FP Designer 1+
http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm -> Frontpanels in U.K 1+
http://thebeast.co.uk/ Frontpanels
http://www.soundtronics.co.uk/laser-engraved-laminate-synth-panels/ MFOS pcbs, Frontpanels and more
http://www.synthcube.com pcbs, panels and more 1+
for scratchrepair:
micro-tools.de -> Lackstift, Painting Artnr.: L51123
Frontpanel Templates:
Template for small knobs: