The guy I recommended for a celebrity stake, who is an internet radio pioneer, regularly talks about about his business finances and his revenue raising methods and some of them can be applicable to NEM development funds.

He uses Amazon affiliate as one source of income (and does mention encourage, occasionally, on the air for people to use the link).

  How that works is you click the Amazon link and it brings you to Amazon (normal prices / looks like normal Amazon) and he gets between 2% - 10% of the product price in referral income.  The NEM threads altogether, going back to January, have had around 200K+ views.  So if NEM had an affiliate link since the beginning it could had raised 1000s or 10000s for development that way.

Technically speaking if you had a group 2000 people use that link and they spent $300+ (buying regular stuff), they would had contributed something like $10K - $15K to NEM development.  

I've used Amazon several times myself (spending 100s) in 2014 but NEM didn't have an affiliate page, so I wasn't able to use it.