An idea that you can give me – through a secure channel so that I actually do not get access to those – your social media passwords (full access) for a specific time. And you need to pay for it.
Option one is cheaper but there is no way to get them back before right time. Unless you crack it with a supercomputer.
The second option is more expensive and if you want to get them back before the right time you need to pay penalty. Useful if you would like to lock yourself out from social media.