If it's stretched could you try sewing a bit of elastic across it to 'pull it tighter' or better still thread very thin elastic around the inside of the rim. If you know someone who's into sewing they should have both, or know where you could get.
Applecake out & cooling on rack still in tin. I now know why it tends to be flat- no Mum I didnt add 4 tablespoonsful of milk this time, more like 3 coz that old spoon not quite a full tablespoon size.
Quorn cottage pie now in oven. Will reheat the last of the redcabbage thing to go with it, plus daughter has already poured 2 glasses of wine from the box! 
Bjay- have sort of made note re seeds, but will also keep a look out for some in meantime. Thx.
BTW that snowman funeral... J.
