It's because they both resemble washed
King Edward potatoes. See also Ian Hislop.
(
Smallbrainfield,
Thu 23 Aug 2012, 9:49,
archived)
Ha ha ha! Just found this, bit more appropriate to your celebrations...
(
Smallbrainfield,
Thu 23 Aug 2012, 10:02,
archived)
*glees*
(
riverghost servicing your mum since,
Thu 23 Aug 2012, 10:16,
archived)