Photo: Tori Spelling/instagram

Tori Spellingwent all out on a special school day with her littlest one.
The mom of five, 49, shared photos onInstagramWednesday of sonBeau, 5½, dressed up as a 100-year-old for his school’s 100th day of school celebration.
Dressed in a t-shirt, a brown cardigan with blue stripes, and cuffed brown pants, the kindergartener posed with a cane that was outfitted with a horn and a little warning sign that says “old man approaching.”
The sweet look was completed with a pair of glasses and a newsboy-style cap over his long, blonde hair, with theBeverly Hills, 90210alum revealing that he picked out the outfit himself.
“Happy 100th Day of School… Beau doing his version of an old man. I love that he still picked style 😂 that’s MY boy!”
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
Referencing the second photo in the set, where Beau poses in the same outfit but also holds an old-school tobacco pipe to his lips, Spelling, 49, wrote, “And, 2nd photo is a tribute to his Grandpa Aaron (Spelling) who was notorious for his old school smoking pipe.”
“I look like my grandpa Aaron,” she captioned the shot.
Tori Spelling/instagram

Last month, theLove at First Liehost brought her mom Candy and two daughters — Hattie, 11, Stella, 14 — to see the closing night ofMean Girlsat Pantages Theatre in Los Angeles.
Sharing photos from the outing onInstagram, Spelling raved that the group had the “best time” at the show together.
“We had a mommy and daughters and grandma date last night. We saw the closing LA night of@meangirlsbwayand we had the BEST time being entertained and just being present with the ones we love,” she shared. “The cast was incredible. The show is hilarious and nostalgic. A smile fest from start to finish!#burnbook#meangirlsbroadway.”
In addition to Beau, Hattie, and Stella, Spelling also shares sons Finn, 10, and Liam, 15, with husbandDean McDermott.
source: people.com