The 26-year-old will wed Hefner, who is 60 years her senior, at the Playboy Mansion in Beverly Hills and to silence the doubters, who still think the nuptials won't happen, Harris is sharing photos of her bridal shower with fans online, reported Us magazine.
Her business partner, Ashley Matthau, threw the party at at new lingerie store, Femme Fatale, and Harris said that it was the perfect send-off.
"We really love Disney. We are huge fans. We go to Disneyland together a lot. My favourite movie is The Little Mermaid, so she (Matthau) got me an Ariel-themed cake.
"We played fun games too. We did questionnaires about who knows the bride best - Ashley won, and my mom came in second!" And, in lieu of gifts, the bride-to-be asked guests to bring Christmas ornaments to decorate the tree in the bedroom she shares with the Playboy boss," Harris said.
"It was really sweet. I opened all the ornaments - some were wedding themed, some were Disney," she added.
Now, Harris is looking forward to the wedding.
"We're keeping it really small this time. We're happy about it. It's going to be a quiet private wedding here at the Mansion with our close friends... I think, with everything that happened before, we want to keep it quiet and private. Last time it turned into a big ordeal and then it all fell apart," Harris said.