Who Here Makes Their Own Power Cables?

Search the topic in the Audiogon Forums, there has been a lot posted there within the past year (2018).

Making them is just as expensive as buying ready made, for the quality you get.   
My one suggestion if you do make your own, is buy the best wire you can, then cheaper plugs, (like Wattgate) then later, you can just upgrade the plugs, even just one.. and see if it matters.

I agree with Elizabeth that there's no financial advantage in making your own since you're paying the price of the single components rather than what they would cost a commercial maker in bulk.

What makes building them yourself attractive is the enjoyment of doing it and/or having done it. I've made most of my power and interconnect cables and am glad I did, but not because I saved any money.