A UK style plug (3 pin) organiser for equipment plugs when not in use. The idea is that it holds plugs with jack connections and keeps them tidy and accessible. It can also be used to hold the plugs of appliances when several lie loose when not plugged in the mains. So discouraging cables from intertwining.
Do not scale this model if it doesn't fit your print bed, otherwise the plug pins will not fit. Angle the part on the print bed for it to fit if necessary.
UPDATE: Link pin added to tie two models together and create six plug positions. When tied together the rows of holes should be outermost on both models, so that the cables face away in each case.
UPDATE: Two position plug holder added.

Ultimaker

Ultimaker 3

No

No

0.2mm

5%