Note: The 21st century jury-rigger will no doubt be familiar with baling wire, bondo, and duct tape. By the 31st century, these materials have evolved significantly, but are still recognizeable.

Baling wire, for instance, has largely been overshadowed by malleable carbonan/polymer superfilaments, which are at least ten times stronger, and something like 100 times more expensive. For this reason, many 31st-century jury-riggers will choose the economical route, and just use five times as much baling wire. The trick is finding it (there's a spool of it in the garage, underneath the hedge laser).

Bondo has seen many evolutionary iterations, the most popular being a nanomotile goop (brand name, 'NuBondo') that sets when you send the appropriate command to the nanobots. The 'bots are re-useable as long as you can keep them fed with the right nutrient solution. Unfortunately, by the time you realize you need the stuff you'll find that the kids have dumped all the 'bots in the aquarium for a 1/100,000,000th scale recreation of the Europan Rebellion, much to the dismay of the fish. You'll end up resorting to regular old Bondo, provided you've remembered to put the lid on it.

Duct Tape has actually seen the most change during the intervening centuries. For instance, it can now safely be used to fasten and seal duct-work. Just be sure to lose the handy-dandy spool with the built-in tape cutter before it trims the tape just above your first knuckle.