The rarest item that I unblocked is
...And the rarest item I saw (my 1'st and only seen coeff. 6 item) was an ace of hearts, but I couldn't get it because the bottom lemon killed me, because it was on level 36.
Well, I guess it's time for 16-20... I'm running out of ideas with the items I have... I need more and rarer ones...
#16:
#17:
#18:
#19:
#20:
P.S. I guess I'll make the table later, after someone else tries to answer.
because it seems that the order of the symbols are head, creature, head, creature, "head" and eye 

dAwjbNS
30191
dAwjbNS
dAwjbNS
xxxzephyrxxx
xxxzephyr was the 1'st to guess, but Dunkar explained why.
dor1997 got it correct, though whong description, but he's right...
electriczax
Coin
