Delta offers 1,500 MQM for one year Sky Club membership

According to this thread on FlyerTalk, Delta is offering elite qualifying miles for buying a Sky Club lounge membership. To take advantage, you must purchase a one or three year membership by December 31st.

You can choose between two additional free months on a one-year membership or 1,500 Medallion Qualification Miles (MQMs). MQMs are what Delta uses to calculate elite status.