Microphone Isolator... DIY?

Go the DIY route, absolutely. It's easy. Even if you lack woodworking tools (or skills) you can have them cut frames pieces to length at the lumberyard/hardware store/home improvement megastore. Lots of detailed instructions and pictures can be found online. Google "DIY Acoustics".

If you mean something like these there's no lumber involved.

http://accessories.musici...xion-Filter?sku=270353
http://accessories.musici...ation-Panel?sku=421589

Try some heavy guage metal screen that can bent into a curve and hold it's shape.  Attach some accoustic foam or any foam to that and attach a bracket that can mount to a mic stand.  Just check out the images and try to reverse engineer it.

I've heard these are pretty good: http://www.wwbw.com/sE-Electronics-IRF-Instrument-Reflexion-Filter-271096-i1392692.wwbw?source=TWFRWXX&mr:trackingCode=CA8CA873-5B81-DE11-9973-0019B9C2BEFD&mr:referralID=NA

I made one once. They do work more than you would expect, but I found making an iso booth gave me much better results. The iso booth is made from six 4'x2' acoustic panels. Just a frame with 1" of fibreglass inside. I just place them into a booth shape when recording. Very movable and versatile and much better results - but more work to build it.

I had 2 of THESE just sitting in the attic. So I brought them down to my little studio and got 2 heavy comforters and hung them using THESE. Made myself a nice free little vocal type booth.

Mike 

Damn uppity lawnmowers. Always acting like they're better then everyone else.

Mike

I actually had a similar question but it would mainly be for recording vocals. My aunt bought a portable walkin closet made of fabric or polyester or something that has a see through plastic opening from walmart.. very portable and easy to move, I was curious if using one of these closets would work well as a vocal isolation room. Its probably 5 feet wide 3 feet depth and 5 feet tall. Just estimations. It sounds like there is no reflection of sound when you stick your head in there and talk. Let we know what you guys/gals think.

I've done the "my corner of the living room" thing too. You have to get pretty creative with acoustical treatments and gear exposure and whatnot (especially if you're married with kids). What looks cool to you doesn't always look cool to the wife or significant other. I would explore the simplest of solutions first such as hanging blankets or comforters in temporary ways. The expensive commercial solutions are great if you can afford that but the end results are not going to justify the extra expense (as far as I'm concerned). Who care what it looks like as long as it works right? Markertek sells these blankets that have hooks already built-in for TV/studio work. Have fun experimenting!

http://www.atsacoustics.c...ic-Materials--102.html

http://www.readyacoustics...=index&cPath=26_11

http://www.realtraps.com/index.htm

http://www.acoustimac.com...rtuemart&Itemid=21

http://moverssupplies.com...nket-Producers-Choice/

http://www.markertek.com/...amp;search=0&off=0