I am using this sturdy tray to place my repurposed toilet rolls . I have cut the rolls in half and using them for starting my seeds.

I bought this try to put my overwintered newly potted geraniums on to carry out to the sun, during the day and back into the shed at night during late winter/early spring. It’s very sturdy unlike other flimsy trays. I know this tray was built for other purposes but it works for me and my situation.