scrolling through my scanned folder, i noticed a few cards begging for attention. the first two were from the 2012 topps gold rush wrapper redemption set - clayton kershaw
and andre ethier
i believe that this set has been replaced in the last couple of years by the spring fever cards, although this year those cards are not obtained via wrapper redemptions but are instead distributed by card shops based on a minimum purchase.
back in the 1990's, there was another type of gold rush in card sets.