With $1,600 you could join CPA Networks (Cost Per Action) like Neverblue, AdSendMedia, etc. Then learn to advertise CPA offers via custom made splash pages with either Cost Per Click (CPC) or Pop Up (CPM) advertising.

Alternatively,  buy a website designed to pay money/gift cards/BTC for completing offers. Then advertise the website to gain members. (Similar to CashCrate or Points2Shop)