Any homes for outgrown car seats?

[Brassica]

I currently have two Group 2/3 car seats acting as a trip hazard in my house because I can’t bear to take them to landfill and seemingly no one wants used ones. Has anyone found a solution to this? There must be so many thousands of these things outgrown every year. Do they all get chucked out at the tip?

I’ve put them on local Facebook pages for free. Charity shops won’t take them as they can’t confirm they haven’t been in an accident