Is that a word?
During my recent Voice Over Workshop/Class with actor Richard Horvitz I was determined to have my own Home Studio Recording Booth. Working with other students and Mr. Horvitz, I researched a lot of potential booth concepts. From the far too expensive (and would never fit in the apartment) down to seeing if I could rearrange my closet (not possible). All the research finally lead to VocalBoothsToGo.com where they have numerous types of booths from large to small, permanent to portable, and I found what I wanted and could afford.
They have a DYI booth made of PVC pipes and sound dampening moving blankets. I chose to have them pre-cut the pipes to the size I needed and a couple of weeks later I began to assemble the booth. Have a look.