From Ebay sellers I have gotten 2 different chips sent to me this way in the last few weeks. Loose chips in plain, cheap, envelopes. For 3 bucks it's really bad service. Not I don't like to leave bad feedback for people, but I did make an exception in this case.I guess these sellers either aren't collectors (or don't want to sell another chip). I hope this is not going to become a trend.

Overall I've found almost everyone does wrap the chips in some way and uses a padded envelope. (Thanks here to Rolondo Espinosa who uses padded envelopes and charges only $1.85 for shipping on all the auctions ending within a weekend).