I wonder if anyone would consider a trade. I am aiming to cultivate physarum polycephalum slime mould in my Kindergarten classroom again; call it a class pet or kin-folk, in the past it's been a good experience for us. Trouble is, I don't currently have any sclerotium and wondered if anyone has any to share in exchange for a copy of my booklet 'Kreepingarten' (see preview at Kreepingarten booklet). I'm in Canada so I'll order some from Merlin if not, but I thought a trade would be fun. Slime mould in the post is legal, right?