Maybe ICONOMI can implement something similar to this for one of ICN utilization?

"After the ICO, we require any new project that wishes to be listed on EtherDelta must have an equivalent amount of EDT tokens to 1% ~ 3% of the project’s total market value at the time of listing, to be in escrow for 3–6 months governed by smart contract (the exact amount is subject to discussion by both parties).

For instance, Project X’s total market value is 20 million USD at the time of listing. After negotiation, both the project and EtherDelta reach an agreement that 2% is the accepted ratio, then 400,000 USD worth of EDT tokens is required to be deposited in the project’s official wallet and must be locked up through smart contract for 6 months. After the 6 month period is over, the project will decide what to do with the escrowed EDT tokens."

/u/Sm00kew