I feel like this would be a popular service for sending anonymous joke gifts.
This is an actual company, but idk if they actually have a van like this.
It was an aprils fools joke from the company. I found the authors website, where he showcases it as part of his portfolio: https://mauricevanberkel.nl/portfolio-tag/easytoys/ And it is documented here also: https://www.adformatie.nl/merkstrategie/1-aprilgrappen-van-merken-professioneler-dan-ooit