The lack of Green Lantern representation in Funko's Pop! Heroes lineup has been a disappointment to fans who've been wanting to build their own mini-Corps. Other than a few variations on Hal Jordan's costume and a rare Sinestro figure from 2011 the company hasn't released anything Green Lantern related in that product line.
In February Funko will be adding John Stewart to their lineup with one caveat - he's only going to be available at Walgreen's. Make sure to starting looking for John at your local drug store in early February so you can avoid the secondary market price gouging!