The Woodsmith precision crosscut sled it may probably be one of the best well thought table saw crosscut sled designs. I design this one as seen from the video, so my dimensions are estimated, but close enough I believe. (Video on below link)

This an improvement of the mini table saw sled as seen on John Heisz video

This wedgie sled is based on Jerry Bennett's Sled with a slight modification. It's a perfect turner's adjustable double fence sled for cutting precise ring segments from 6 to 48 by using wedgies. I have extended the sled to the right so there's bed there also and added some wood reinforcement to the back and a bridge.

Table Saw Finishing Pyramids Cutting Sled for Painting or Varnishing

63X25 inches Cross Cut Sled Combo (26 Inches Extension) with Zero Insert Clearance, Hold Down Slots and Additional Miter Sled.

Table Saw Sled with Zero Clearence Insert - Extendable Fence 40cm (16") on Either Side, Hold Downs and Stop Block.