Teachers and pupils at Alesha MacPhail’s school are to celebrate her life ahead of the first anniversary of her murder.
The six-year-old had just finished primary two when she was abducted and killed on the Isle of Bute last summer.
Aaron Campbell, 16, was later sentenced to a minimum of 27 years after he finally admitted his crime.
Wendy Davie, head of Chapelside Primary in Airdrie, said the happy, chatty youngster would never be forgotten.
A large wooden playhouse inspired by the children’s memories of Alesha and decorated with their pictures of unicorns and butterflies has been built in the school playground.
Ms Davie said it was a lasting tribute to the child with an “infectious smile”.
The project was led by the children, who wanted a meeting place where they could make friends and have a chat.
The head teacher is confident it would have won Alesha’s seal of approval.
She told BBC Scotland: “She would want a place where she knows her friends can come and feel safe, and have a blether, and have giggle and play with slime, and draw and read books.
“She loved a good chat. She was always late for class in the morning because she would stay back at breakfast club to blether.
“She liked to get to know people and she was very, very caring towards everybody. She’s sorely, sorely missed.”
It was funded with £22,000 worth of donations from well-wishers from around the world following an online appeal.
Ms Davie said it was important that pupils took “ownership” of the project.
“Death is a very difficult thing for young children,” she said.
“This was a very child-friendly way in which they could say goodbye and they could incorporate all their ideas and all their memories into something that is going to be lasting here for others to see who didn’t know Alesha. “
The children have also designed a special badge – a unicorn inside a pink heart – which they will all wear at a special assembly later.
They are expecting Alesha’s family to join them to remember their school friend in the service where pupils will share their memories and sing her favourite song – Light of Mine.
“Then because Alesha’s smile was a very important part of her, it was infectious, the children have written a poem incorporating the letters S,M,I,L,E,” she added.
“Then we have rewritten the song, Reach for the Stars, and the children will sing that tomorrow as well.
“We hope that although tomorrow will be tinged with sadness, we hope that people will leave the school with a smile as well.”
Alesha was staying at her grandparents’ flat on Ardbeg Road, Rothesay, when she was taken by Campbell in the early hours of 2 July last year.
The child was then carried to a wooded area where she was raped and killed.
A jury at the High Court in Glasgow later heard Alesha suffered 117 injuries, some of which were described by a pathologist as “catastrophic.”
A major search was launched the following morning but shortly before 09:00 an islander discovered Alesha’s naked body near her killer’s home in Ardbeg.
Campbell was arrested two days later after his mother told police she had captured his odd movements on her home CCTV system.
Despite overwhelming forensic evidence the teenager, who gave evidence during his trial, repeatedly denied he abducted, raped and killed Alesha.
Campbell told the High Court in Glasgow he had never met his victim and lodged a special defence naming the 18-year-old girlfriend of Alesha’s father as the killer.
But he later admitted his offences to a psychologist preparing a report for the court ahead of his sentencing.
Judge Lord Matthews said the background reports painted a picture of a “cold, callous, calculating, remorseless and dangerous individual”.
The school event will be followed next month by a fun day organised by Alesha’s mother, Georgina Lochrane.
The youngster has already been remembered on Bute with the unveiling of a pink memorial bench at the “children’s corner” in Rothesay.
Last month, Campbell was given permission to appeal against his sentence.