"Just delivering a pre-Hogwarts gift – gifts – Ron’s sent this..."
-- Harry Potter (CC1.7)
James gets his father’s Invisibility Cloak and a prank comb from Ron. Lily gets fluttering fairy wings from Harry and farting gnomes from her uncle. Albus is given his father’s precious baby blanket and Uncle Ron has sent him a love potion (CC1.7).
Evening of 31 August 2020, the day before school starts
Of course, Harry would not have received gifts from the Dursleys before the start of the school year. Harry has obviously thought hard about what to give his children - James receives something valuable and Lily has something light-hearted, but what Albus is given is personal. Harry is therefore extremely hurt by its rejection (CC1.7).
Ron's choices of gifts for them reflect the his personality - and also that he runs Weasleys' Wizard Wheezes alongside his brother George.
From the Web
Pottermore: Harry Potter and the Cursed Child
The theatre production opened in the West End of London at the Palace Theatre on 30 July 2016: Harry Potter and the Cursed Child, Parts One and Two