This has got to be one of the coolest and most unique insert design ever.
The 1998-99 SkyBox Thunder Flight School insert card has a "binocular" design which is unlike any card ever produced. The cards have a ratio of one in 96.
Since there are 12 cards in the set, the odds of getting one particular card is 1:1152. That's pretty hard to come by I must say.
I got the Kobe Bryant card which was included in my April 11 - 15 mail week.
1998-99 SkyBox Thunder Flight School #2 Kobe Bryant
the lens viewer...
This is definitely a nice addition to my Kobe Bryant side PC.