Rotary Switch:

EDIT: As @Riggidyboo mentioned, the original link I posted was make before break, I think Sam mentioned you needed break before make in a build video if i recall.
ROTARY SWITCH 1 POLE 12 POSITION ALPHA SR2611F
https://www.taydaelectronics.com/rotary-switch-1-pole-12-position-alpha-sr2611f.html
$1.69 / £1.29