As to why a Waiter is used for the promotional knife, i suspect it's just down to cost. The Waiter must be the cheapest "full-sized" SAK a company can buy as a promotional item.
Post Script: What they really should of done was make it a Recruit
(Image removed from quote.)Hey, what's that below the trumpet? is it a swisschamp?
cool SAK, im off to watch the movie, with my kids of course lol paulcheck out the first image of the main character swinging on the rope ,his SAK has a fork on it http://adisney.go.com/disneyvideos/animatedfilms/up/check out my new avatar, it even looks like me lol