Parking alternatives for llll.com domains

[dnk]

I have about 150 llll.com domains, interested in a parking alternative, the parking revenue for these domains from Sedo, Bodis and Namedrive is less than $5 a month. Any suggestions will be greatly appreciated, since the renewals are very expensive, and unable to get a single buyer willing to pay a fair price for these domains. Owning these domains is also causing health problems due to harassment by greedy cruel scoundrels.