In the page for explanation of drink place in festa, there was a photo of drink tumbler. Please see the following photo, and check Pikachu left side. Like a white Leafeon is there. This photo and related page have already deleted after few minutes.
Thanks to Pokemon Movie thread in 2ch.
[ Reference ]
Pokemon Festa 2008
Deleted photo backup
[ Edit ] 6 June 2008 PM8:00 JST / 6 June AM4:00 PST
[ 2nd Edit ] 6 June 2008 PM8:27 JST / 6 June AM4:27 PST Uploading enlarge photo
[ 3rd Edit ] Spelling correction ... orz
[ 4th Edit ] If want to check AAPF's article about Shaymin forme, please refer to Shaymin Forme Info.