Peggy, luckily I asked before we got off the ship if anybody could help me find it. They gave me this supplier, and I was able to order from them:

Hotel Amenities Resource
200 Van Ness Ave, Suite 801
San Francisco, CA 94109

Phone 415-345-0007

Email: Londonsoap@aol.com

I called them; they seemed to be kind of new at this, but were amazingly nice and helpful.