the dc jacks listed in the baby board build guide are like $1.20 from mouser. I've found low profile jacks from tayda for 0.24
http://www.taydaelectronics.com/hardware/dc-power/dc-power-jack-2-1mm-bulkhead-type-panel-mount.html
and from bitches love my switches for 0.63
http://www.bitcheslovemyswitches.com/#!/~/product/category=5027592&id=18921807
I was wondering if either of these will work? It looks like there might be some grounding issues with these if using on an aluminum enclosure. anyone know if these will work?
The BLMS ones are the ones you want. The Tayda ones will short on the enclosure. Feel free to use those for positive ground pedals, though.
Smallbear carries the same type from BLMS, too.