So here are a couple of nice plans from the 1987 Popular Science Supplement. The first is a finger joint cutting machine. There are many nice plans out there for finger joint cutting jigs. Most use the table saw to do the work with various blades, blade stacks, or dado stacks. Some are more complicated than they have to be and do not have much adjustment to compensate for things like, blades that run less than true.
If you have a bit of floor space and like to use finger joints for lots of joinery, this dedicated little machine might be for you. A 1/2 hp or larger motor, a ball bearing spindle available at most hardware stores, and a good quality 6" dado stack are the main parts needed. The rest can all be easily shop built. There is lots of adjustment, so once you have set up a snug fit, you can quickly start to produce stacks of finger jointed boards. As the author alludes to their are other applications this can be used for.
My feeling is that safety was a consideration in the design, the blade lives below the table, it is raised into the work with a simple foot pedal feed, and returns below the table, when the pedal is released. Additional guarding on the underside would insure nothing wanders near the blade from the underside.
The second project is a uncomplicated router table by R.J De Cristoforo. The table has nice built in storage and guards for the different functions, the top is solid looking. What more do you need? Some plans offer more in eye appeal but function no better for their intended purpose. A characteristic of R J's designs, I find, often omit unnecessary additions that don't contribute to tool function.