Recently saw a post in an LED group on the book of faces with a similar project. I though it was cool. Since I had some acrylic tubing on hand, and a bunch of LEDs and a pile of cheapo off the shelf controllers, the forge and some scraps made this fairly easy. All I had to do was buy some fire pit glass and it was game on.
I thought about putting a pixelblaze in one of these but went with a cheaper solution. Just started playing with the blaze and it has a ton of potential.
One of the controllers has no remote and runs a bit too fast for my tastes. I overlooked the buttons that would have allowed me to tweak the settings before sealing it in the base. Still came out ok. Not bad for a $6.88 off the shelf led brain. The other controller has a remote and I was able to pick patterns and speeds that I like, even after sealing it up. $8.50 well spent. For less than $2 more, the one with the remote is the way to go.
I had clear acrylic 2 tubes and 10 lbs of firepit glass so I ended up with 2. More videos and pictures here.