This article is from the Final-Fantasy and other Square Soft Games FAQ, by email@example.com (Nick Zitzmann) with numerous contributions by others.
Wayne's menu has a "Rare T-Card Collection" option. However, nothing in
the game tells you what this does.
As things turn out, there are fourteen rare gun trading cards available
in the game. All fourteen are found scattered around the Chrysler
Building (see article 6.16.1). Give them to Wayne, and they'll work just
like mod permits or blank trading cards, except that you get two
modifications instead of one.
If you give Wayne around 9-12 trading cards, selecting "Rare T-Card
Collection" will have Wayne give you a Toolkit. The Toolkit gives you an
unlimited set of tools.
If you give Wayne all 14 trading cards, selecting the option will have
Wayne give you a Super Toolkit. This gives you an unlimited amount of