Austin DIY Ribbon Microphone by sears
You really can make your own ribbon mic. The site has a testimonial from Bob Crowley and a real frequency response report.
I was an early adopter and the makers have made the kit a lot easier since then. The most difficult part, the plastic truss that holds the magnets and ribbon, is now a prefab piece of plastic. You don't have to source the parts yourself. And the video tutorial is a cinch to follow.
The ribbon is made of aluminum leaf from Michael's craft shop. Handling it takes practice. But once installed, it doesn't blow out easily. And you'll have a mic you can service yourself since you made it.
It sounds luscious. It has reach and the figure 8 pattern is consistent. So if you haven't treated your tracking room, you can still get some good sounds through careful mic positioning.
I've used it on everything. Percussion, acoustic, electric cabs, singing. Try sending it down a hall with the nulls facing the walls. One of my favorite positions is over the right shoulder of a violinist, facing the instrument.
I feel like I'm dinging the mic on "Ease Of Use" but it's a KIT. Once you've made it, ease of use is a 10.