I have a few chips on Ebay, mostly (but not all) from the UK, including those in the scan below. The Lemon Tree set is the last I have - I bought 20 of each about 2 years ago, and after this one there are no more.

http://search.ebay.com/_W0QQgotopageZ1QQsassZchipperukQQsorecordsperpageZ50QQsosortorderZ1QQsosortpropertyZ1

Thanks for looking

Jason