If you're just looking to get rid of them to clear them out ASAP, there's plenty of giveaway / begging threads here, or you could do raffles (tag and categorize them properly).
Otherwise it's just a game of bumping and patience for the right people to come along. Adopts are a completely over-saturated market, and if you're not "popular", don't expect them to just fly off the shelves without some marketing.