Spyderkeys
 

Spyderkeys, also know as Hummingbirds, are one of the smallest knives ever producd by Spyderco. The "key ring" style shown below was produced in a variety of handle materials, most of which appear here. In addition, a "tie clip" backed version was produced in Abalone, Stag, and all Stainless. 

 
 
Above, left to right: Corian, Sambar Stag, Red Bone, Abalone, Black Pearl, Cocobolo, and Black Quince
 

 

The three shown above are, top to bottom Stag, Corian ( used for kitchen countertops) and Red Bone.
 
 
These two beauties are Abalone (top) and Black Lip Mother of Pearl (bottom)
 
 
I believe this one is Black Quince, although the seller claimed it to be Walnut.  Wood is very dark, which is consistent with either, depending on age, source, and finish, but the list of handle materials used on Spyderkeys that was provided by Joyce Laituri of Spyderco a while back made no mention of Walnut as an option.
 
Joyce Laituri's List of Spyderkey and Mini-Mariner Variants
 
SpyderKeys and Hummingbirds are the same entity. All had 1-1/2"clip-point, locking blades and a keyring. Model numbers (SKU #) and MSRP in 1991 were:

3002A Abalone MSRP $64.95
3002ATC Abalone Tie Clip MSRP $48.95
3002B Black Lip Pearl Oyster MSRP $64.95
3002C Corianne (white/grey speckled) MSRP $51.95
3002P Mother of Pearl MSRP $64.95
3002Q Quince MSRP $44.95
3002RB Red Bone MSRP $50.95
3002S Stag MSRP $59.95
3002SS Stainless Steel MSRP $37.95
3002STC Stag Tie Clip MSRP $51.95
3002 Tie Clip (stainless steel) MSRP $39.95
3002W Cocobolo MSRP $48.95

Mini Mariners: All had sheepsfoot, non-locking blades that are approx. 1/2". This thing is TINY.

3001A Abalone necklace W/ chain MSRP $49.95
3001SS Stainless MSRP $43.95