oh yes, JNS - that's who I ordered tennessee handles from before.
However, what you could do - since its a straight handle - is get a 36" handle and cut it down to the lenght you want. You could then either not have a swell OR you can add a swell. If you get a house or tennessee handle, they tend to be SUPER FAT, so you might have enough material to remove from everywhere except to the end which will leave a bit of a swell. I've done this before with a sledge handle. If you want to add a swell, there are two ways to do this. the way I've done it is cut the swell off the bottom of the handle - then remove the number of inches out of the handle that you want - then joined the swell back on with a wooden dowel and glue. I shortened a couple double bit axe handles from 36" to 28" - 30" this way. One of them worked out really well and the other was a little cocked but still fine. The better way to do it is the way that Yankee Josh has done it. Cut the handle to the length you want - then create two opposite flats to the end of the handle and add pre cut material to create the swell. He glued them on and then shaped. I don't thin he added a pin, but as far as I know it works fine. There is very little stress to the swell at the end so the connection doesn't have to be awesome. In my experience, link handles have the nicest swells - both on double bit and single bit handles. house and tennessee tend to be fat with minimal swell.