A quick jig for making tenons

I need a quick tenoning jig, and will resist the urge to get the nice one at BusyBee tools. Instead, I'll cobble a couple pieces of MDF wasting away in the shop and put them together like this.

The bare minimum to cut tenons for some pieces in the TV stand project.

This will insert into the sled that I've made today, and will clamp to the edges of the sled as well. I'd like to make a better jig in the future, but for now I'll focuss on getting the actual project underway and worry about a versatile design later. I wish this wasn't going to be made with MDF... but hey, let's think pragmatically.

A day later...

The actual jig... minus a few parts.

I did not enjoy working with MDF: the dust is a annoyance but the worst is that it clogged up the drill bit after every pilot hole drilled. Only after a while, I tried a masonry drill bit and solved the clogging problem.  I skimped on one support and one of the wing since neither proved to be necessary to get the job done.