My Pumpkin favourite treats from p@h are:
The stuffed carrot woodroll -
http://www.petsathome.com/shop/en/pe...woodroll-treat (they also do a parsley one but that wasn't as popular with my past hamsters as the carrot one was)
And also these
NibblePot -
http://www.petsathome.com/shop/en/pe...imal-treat-75g - they come with different contents in the pots but I normally get Pumpkin the one with apple chips