At present there is no Guinness World Record for this category.
No, they currently only have a record for the largest Potter collection overall.
As of 2018, the world's largest bouncy ball collection belonged to Jeremy Telford, who owns over 1,300 different bouncy balls. His collection has been recognized by the Guinness World Records.
According to the Guinness Book of World Records, the person with the largest collection of bus tickets is Ladislav Sejnoha from the Czech Republic. Ladislav has 200,000 tickets from 36 different countries.
Darlene Flynn, who holds the Guinness World Record for the largest collection of shoe-related items, was not featured in the 2009 annual GWR book. She was featured in the "collections" section of the 2008 book though.
A man named Dan Brown who resides in Bellaire, Ohio has turned his private collection into an unofficial LEGO museum. His collection is regarded as the world's largest privately owned LEGO collection. At last count from January 2008, the museum boasted over four million individual LEGO pieces. It is not officially recognized by the Guinness Book of World Records yet, but he does hold the Guinness title for "World's Largest LEGO Brick Image." Each room in his museum has a theme, with various LEGO sculptures and creations.
The largest faceted sapphire in the world is the Ophir Sapphire. The Ophir Sapphire is recognized by GUINNESS WORLD RECORDS™ as the Largest Faceted Sapphire in the world. Weighing 31,308 carats (roughly the size of a dinner plate), the Ophir Sapphire is certified by the Gemological Institute of America (GIA). The Ophir Sapphire is part of the Ophir Collection, which includes a total of 40 rare gemstones, the majority of which are the largest known specimens of their kind in the world. The Ophir Collection has been awarded a total of nine GUINNESS WORLD RECORDS™ titles.
The largest cut tanzanite in the world is the Ophir Tanzanite. The Ophir Tanzanite weighs 508.06 carats and has been recognized by GUINNESS WORLD RECORDS™ as the largest cut tanzanite in the world. The Ophir Tanzanite is owned by Ophir Collection, LLC.
Dan Cavanah of Bell, Florida has a Guinness World Record for the "Largest Stick Horse Collection." The first record was in 2002 with 360 pieces and is second record was for 460 pieces. There are now over 500 pieces in the collection and it is on display at Dolly Parton's Dixie Stampede Dinner Show in Pigeon Forge, Tennessee. Dan Cavanah wrote a really cool children's book about a little stick horse. the book is called "Tiny Timber Finds a Friend." There is a lot more information at stickhorsetales.com Dan Cavanah of Bell, Florida has a Guinness World Record for the "Largest Stick Horse Collection." The first record was in 2002 with 360 pieces and is second record was for 460 pieces. There are now over 500 pieces in the collection and it is on display at Dolly Parton's Dixie Stampede Dinner Show in Pigeon Forge, Tennessee. Dan Cavanah wrote a really cool children's book about a little stick horse. the book is called "Tiny Timber Finds a Friend." There is a lot more information at stickhorsetales.com
The Guinness World Record for the largest collection of snow globes is 4,059, owned by Wendy Suen in Hong Kong as of 2021.
In April 2000 David Morgan who lives in Burford UK claimed the world record with a collection of 137 different traffic cones. David owns a traffic cone from about two thirds of all types of traffic cone ever made and he is still collecting. The record still stands in 2009 according to the Guinness Book of records. Update - David Morgan now has around different 550 traffic cones in his collection
The world's largest chocolate bunny, created in 2017, weighs an impressive 4,409 pounds (2,000 kilograms). This giant confection was made in Italy and stands over 3.6 meters (11 feet 1 inch) tall. It was crafted by a team of chocolatiers and set a Guinness World Record for its size.
Hershey's chocolate factory is the largest, located in Hershey, Pennsylvania.