A tool to help slide cables into the IKEA Montera cable channels/trunkings, which I found to be extremely tedious since the rubber lips/edges keep folding in on themselves.
-Put the tool with the stubby end first into the cable channel.
-Place the cable into the tool.
-Push down on the cable at the same time as you push the tool through the channel.
Just printed mine standing on the stubby end and with supports for the grip.
Extremely fast and dirty model since it's just a simple tool.