Don't know if these already exist from other brands, but first I've come across them. A router bit for cutting T-slots in wooden benches to use guide rail/ratchet clamps like on the MFT, etc.
http://www.axminster.co.uk/axcalibe...source=bronto&utm_medium=email&utm_term=Image+-+New&utm_content=New+Axcaliber+T-slot+cutter&utm_campaign=16wk17mt1_bench_accessories
http://www.axminster.co.uk/axcalibe...source=bronto&utm_medium=email&utm_term=Image+-+New&utm_content=New+Axcaliber+T-slot+cutter&utm_campaign=16wk17mt1_bench_accessories