Expanded polystyrene plug trays

Does anyone know if these are still available anywhere [and if not why not]?
I think I remember someone finding a supplier ages ago, but I can't find the post and have had little luck googling.... a Bath freecycle member is asking.

 

Hi Liz you could try N.A.KAYS Horticultural products.
www.kaysdiscountgarden.co.uk

 

You mean you actually want to buy them?? I save the ones I got with my earlier plantlets.

 

A member of Bath freecycle is looking for the white 'propapak' ones, made of the white expanding polystyrene used for packaging- he can't find them anywhere and the ones he has are crumbling.