[masraum]

Originally Posted by Scott Douglas

I was looking and couldn't find what I wanted.
But found what Nick is talking about and think that's my best bet.
https://www.homedepot.com/p/3-Outlet-Extender-with-16-AWG-HDC301/319908311
Cut the end off and do some soldering/heat shrinking and call it done.

I tend to make extensions for power tools robust. But this may be a bit big compared to the wire in your extension in which case it's probably overkill. If your extension is 16gauge, there's no point in making the last food 12 gauge.