I have these three sets of things to to to pass on.
1. KidzLabs animation praxinoscope - This has been opened, and used once, but I think we put the bits back afterwards, and it can be reused.
2. M&S Dinosaur Cress Forrest - Never used, but package a bit battered. Also has a "Display Until " date of 2022, but am assuming the seeds in it are likely to still be viable, if anyone wants to give it a try.
3. Chemistry Wiz - This was given to us secondhand, though I don't think the people who gave it to us used it, and and we have not tried to use it. as far as I can tell at a glance the bits seem to be there. But I can't be sure.