The 36-year-old star was viewing the products from Shnuggle when she was overheard saying: "I'm sure at some point we'll need the whole thing".
Sinead Murphy, who founded the company with her husband, subsequently revealed that Prince Harry was particularly interested in some of the baby products.
Dominic Gaynor, managing director of TeamSport Karting said: "There is so much excitement around the royal wedding, that we wanted to get involved and see if we could find another ideal couple called Harry and Meghan".
Another fan said that if Princess Diana will be at her son and Markle's wedding, she should at least be given a special tribute.
Middleton may not be the maid of honour, but have no fear, she'll still have a part to play on the big day.
"I was also there for William and Kate's wedding".
The Jamisons said that Princess Diana will be there in the form of a ghost.
Meghan is also reportedly set to follow in the footsteps of Catherine - who has four-year-old son Prince George and two-year-old daughter Princess Charlotte, as well as expecting her third child with husband Prince William - when it comes to echoing the fashion sense of Harry and William's late mother Princess Diana, who died in a auto crash in 1997.
Markle could have a chance to deliver two speeches. In addition to her acting roles, she is a humanitarian advocate who delivered a powerful speech before leaders of the United Nations in 2015. This is the venue where Prince Harry and Markle posed for their official engagement photos in November previous year.
A Kensington Palace spokesperson said: "Prince Harry and Ms Meghan Markle are pleased that members of the Armed Forces will play such a special role in their wedding".
Hint: Members of the public will attend the wedding. The couple will also invite 100 students from two local schools in Windsor that have a strong affiliation with Windsor Castle. Approximately 1,200 people from across the United Kingdom will be invited, including "young people who have shown strong leadership and those who have served their communities", according to Kensington Palace.