yea, i have 40 on 1 char and a few on another...
just get into the spooky house and keep using all items you get exept for the phantomscroll. Till you have a full inv of phantomscroll and store them (you can with these!)
and abou the same trick with dbscrolls? no...
DragonScrolls are pink (and i could know ;)) and phantomamulet are blue...
however, these amulets wont be gone after the event (at least, i think)
so you must keep aware for the fake one's forever...
especially check them when some1 has more then 5 metscrolls because how more he got, hoe more chance their fake (or maybe 1 real and the rest fake!)
just double check ANY item you buy and maybe even record it with fraps if its too cheap. if it is fake, you send the record to TQ and they will (hopefully) give your money back and/or ban the other guy ;)