Apart from Rocket’s Sneasel, there is also Rocket’s Sizor. Those two are pretty abundant. You should be able to get mint copies for well under 20 USD: m.bulbapedia.bulbagarden.net/wiki/Rocket%27s_Scizor_(Best_of_Game_4)
Then there was this Alto Mare half deck and a Tyranitar half deck released. The Alto Mare one is pretty rare I think. Don’t know if you want to count those as promos:
m.bulbapedia.bulbagarden.net/wiki/Theater_Limited_VS_Pack_(TCG)
m.bulbapedia.bulbagarden.net/wiki/Tyranitar_Half_Deck_(TCG)
Furthermore, at the Tropical Mega Battle 2001 there were some Tyranitar half-decks in English and other foreign languages given out to winners. Those are definitely rather trophies than promos. Obviously they’re as rare as it gets. You can look up some info on those in this thread and the spreadsheet: www.elitefourum.com/t/master-list-of-the-rarest-pokemon-cards/28390/1
There might be more, but those are the ones I can think of right now.