Prince Charles of the UK is considered an avid and odd collector of what item?

he's weird anyway so that doesn't surprise me

I picked the oddest item from the list & got it right. I shall refrain from commenting on his choice 'cause I know that Man is a strange critter. However, the toilet has been called "the porcelain throne".

I know he likes architecture and organic farming and in his Prince's Trust, he is a landlord who is obsessed with conservation and grade I or II buildings on the South Coast. The loo seats really baffled me. Here is a man with the status and means to collect something interesting, meaningful and that can direct attention to the environment. Or some other pressing issue such as income inequality, child poverty et al. But no. The man collects loo seats.

Before going to bed every night he sniffs them

This can not be true !

this is just odd

Not a surprise, somehow with all the other items he could collect !

not true