Chris Gratton - always found it amusing that he and Pierre Turgeon couldn't wear their signature #77 with Colorado since it was retired for Ray Bourque.
Dave Scatchard - Apparently the Bruins/Islanders agreed to trade Jason Allison for Dave Scatchard, Zdeno Chara, and the Jason Spezza pick. But when Mike Milbury asked Islanders owner Charles Wang for approval, Wang said no because he appreciated all the charity work that Scatchard had done. Milbury tried to sub out Scatchard for Bill Muckalt and the Bruins were understandably annoyed. Isles pivoted to Alexei Yashin instead. After the lockout Boston signed Scatchard but traded him a few months into a four year deal.
Troy Mallette - Back in that CBA, there was a messy process with Group I RFAs. The original team couldn't match the offer and instead the two teams had a small window to work out a trade. If they couldn't agree, then each side would present their offer/request before an arbitrator. In 1991, the Rangers signed Adam Graves from Edmonton and offered Mallette. Edmonton requested a couple prospects in Steven Rice and Louie DeBrusk. Unfortunately for them, the arbitrator wasn't exactly hockey savvy and admitted later that he didn't know how to value prospects. On paper, Mallette seemed similar to Graves. Their stats in 1990-91:
Graves: 63 GP, 21 points, 123 PIMs
Mallette: 71 GP, 22 points, 252 PIMs
Rangers GM Neil Smith had been part of the scouting staff that drafted Graves in Detroit. He correctly thought that there was some untapped offensive upside. Meanwhile Mallette would quickly become a journeyman.
Definitely a quiet heist from that era. And one of the reasons why Group I restricted free agency got folded into the more familiar Group II (with the predefined draft picks) into the following CBA.