Items from the 'Grand Theft Auto 5 Collection' can be purchased from the Rockstar online store.
Chop the dog plush toy and whistle
Digital Spy reviews GTA 5: 'An open world environment like no other'
New items include a plush toy replica of Chop the dog, which comes with a removable collar, a secret compartment and a bullet whistle bearing the GTA 5 logo.
Fans can also purchase a Chop Leash and Collar Set, which features a metal chain leash with leather handle, a metal bolt snap fastener and a leather collar adorned with the Rockstar logo.
Other items include a GTA 5 hoodie and beach towel, a Republican Space Rangers t-shirt and a range of posters and prints.
GTA 5 generated $1 billion in just three days, making it the fastest-selling entertainment product in history and breaking previous records set by Call of Duty: Black Ops 2 and The Avengers.
GTA 5 hoodie
Digital Spy reviews GTA Online: 'Full of untapped potential'
GTA Online was released as a free update two weeks after launch, but was plagued by numerous bugs and glitches. It has since been updated with free mission and content packs.
A recent report suggested that Lindsay Lohan is planning on taking action againstGrand Theft Auto 5 for use of her image in-game.
Gallery: View items from the Grand Theft Auto 5 Collection below: