I have really girly seat covers on my T100 right now (black and hot pink, which my husband loves... not), but on my 93 T100 I actually replaced the seats with some aftermarket buckets. My 93 was dark grey with white pin stripes on the back, so I ordered charcoal buckets with white inserts in the middle with the harness belt straps instead of the normal seat belts. I actually got a ton of compliments on them, but the white got dirty WAY too quick when you're out at the lake and so on. I found them on ebay, there are a ton of different bucket seats that are really cheap for all of the different Toyota models. Plus, they have several different colors and styles as well and they are not that expensive. Beats trying to repair or cover up a tear in the seat. The patch kits I had gotten for the 93 just didn't work worth a darn and it was just a pain to try and fix it.
In fact, if you are looking for seat covers that actually cover the whole seat and offer other things that match, ebay has some excellent options for under $40 for both bucket seats, some have back seat bench covers, and some have other items that come too, like steering wheel covers and floor mats. (Although I think floor mats are separate.)