They invited me to the inaugural mascot ceremony where I ran around the pitch with Gunnersaurus and got to meet the guy inside. And for the next 20 years I've watched in awe as my little Gunnersaurus Rex has gone on to become a loved and idolised part of Arsenal.
"It's the most immensely flattering and wonderful thing. Wherever I go and meet an Arsenal fan, it doesn't take me long to drop in that I designed Gunneraurus. I have a drink bought for me everywhere because he's such a wonderfully loved character. It's the proudest thing I've ever done.
"Being 11 years old and designing a Premier League mascot gave me real self-affirmation. To have that injection of confidence – no art A Level teacher was ever going to tell me that I sucked at art because I could always say, 'how many Premier League mascots have you designed, mate?' So I'm grateful to Arsenal for the concept of the competition, for giving it to a young audience."
More than 20 years later, Peter's childhood creation continues to play a part in his life. Gunnersaurus even turned up at his wedding in August 2013.
"Unbeknownst to me, my wife, my best man and my family contacted Arsenal. So I did my speech and my best man did his, and at the end he told the Gunnersaurus story. And I'm like, 'that's great, I didn't think the story would come up today.' Then there was this amazing reveal where these curtains opened up and in runs Gunnersaurus Rex with a signed letter from Arsene Wenger and all kinds of cool stuff –I was just blown away.