Some recent design social games auctions on eBay:

TEEN MAGAZINE The Board Game RARE!! Complete!! Design A Mag Cover Social Girls

$16.49
End Date: Friday Dec-1-2017 3:20:17 PST
Buy It Now for only: $16.49
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Mobile & Social Game Design
$61.21
End Date: Wednesday Dec-13-2017 20:23:41 PST
Buy It Now for only: $61.21
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Mobile and Social Game Design : Monetization Methods and Mechanics, Second...
$49.95
End Date: Sunday Nov-26-2017 9:43:29 PST
Buy It Now for only: $49.95
Buy It Now | Add to watch list