American Woodworker had plans for one two issues ago. It was a melamine board with a miter slot insert on the bottom. They put two t-tracks perpendicular to the miter slot on the top and attached a board to those. That board set the taper angle.
Then they attached two hold down clamps to the "angle setting" board to hold your piece to the melamine.
The Melamine acted like a zero clearance insert/sled because they cut it after they put the miter guide insert on the bottom.
Pretty cool looking. You loose 3/4" depth of cut and might need to clamp another piece of Melamine to other side of the table to support the cut off piece, but handy if you want to make several identical pieces.
I have one of those aluminum taper jigs...the thing scares me every time I use it on the table saw so it has found a home on the bandsaw. I plan on making a wood jig with clamps at some point for the table saw.
If you can find the American Woodworker magazine Dec 06 & Jan 07 issue
they have a section on page 68 with several tablesaw jigs, one of them is
a taper cut jig. All the items you need to buy (hardware) is a couple of
toggle hold down clamps, star knobs & bolts and 2 pieces of t-track.
If you want to get more elaborate with it you could substitute the hardwood miter runner for an Incra miter slider...but that is a matter
of choice in my opinion. eezlock:icon_thum