"Junk Wax" Era signature inserts

[priestc]

My next collecting goal is to find a junkwax era signature insert out of a pack. Here are all of them that I know of:


Donruss
1991 Donruss Series 1 & 2
* Ryne Sandburg

1992 Donruss Series 1 & 2
* Cal Ripken

1993 Donruss
* Will Clark

Score
1991 Score Series 2
* Mickey Mantle

1992 Score Series 1
* Joe DiMaggio
* Chuck Knoblauch

1992 Score Series 2
* Mantle
* Yaz
* Musial
* Yaz/Mantle/Musial

Upper Deck
1990 Upper Deck High
* Reggie Jackson

1991 Upper Deck Low
* Nolan Ryan

1991 Upper Deck High
* Hank Aaron

1991 Upper Deck High and Low:
* Harmon Killebrew
* Fergie Jenkens
* Gaylord Perry

1992 Upper Deck Low:
* Ted Williams

1992 Upper Deck High:
* Bench/Morgan

1992 Upper Deck High and Low:
* Lou Brock
* Vida Blue
* Rollie Fingers

1994 Upper Deck Series 1 (Retail only)
* Mantle/Griffey Jr.
* Mante
* Griffey Jr.

1994 Upper Deck Series 2:
* Alex Rodrigues

Fleer
1992 Fleer
* Roger Clemens

1992 Fleer Ultra
* Tony Gwynn

1993 Fleer
* Tom Glavine

1993 Fleer Ultra
* Dennis Eckersley

Leaf
1993 Leaf
* Frank Thomas


I know some of these are cheaper to get off ebay than to try to pull one from a pack. Which one is the easiest?