The licensing agent for Over the Moon's Pip brand, KJG has revealed some strong sales for the property.
Figures show that nearly 400,000 Pip cards have been sold since launching just over a year ago, with sales of 30,000 in 2010 alone.
However, this figure doesn't include sales through Moonpig and Thorntons, where Pip designs are apparently selling very well.
In addition, 4,000 Pip notebooks have also been sold since launching three months ago, along with 3,000 sets of Pip-branded party invites.
A range of mugs, coasters, purses, wallets and umbrellas from Bluebird designs is due to go on sale this spring/summer.
"These incredible sales figures show that Pip is more popular than ever," said Kirsty Guthrie from KJG. "It's great news for everybody involved with the brand and, in licensing terms, it provides a fantastic platform for us to build on."