This sweater is the kids version of the Kelim sweater by Charlotte Kaae. I knit a Kelim a few years ago, and ever since then, my boys have been pining for their own many colored sweaters. This color blast design plays with robots for the body and yoke, and Formula 1 flags for the sleeves.
If you’d like, you could let the future owner of the sweater help pick out the colors. My boys of 4 and 8 years each helped pick out the colors for their own sweater.