Or for the WHOLE FAMILY for that matter?
I know kids will always have their favorite toy(S). The thing I see missing from toys these days is the 'Family Involvement' element.
Parents give their kids a tablet and tell them 'run along & play'. This is guided isolationism at best.
Part of what makes minds creative and strong is the interaction they receive when playing with others and/or their parents. Having a singular toy/activity is great, but having something the whole family can participate in is greater, IMO.
Remember to consider this when designing your toy concepts and other inventions.
"The best way to predict the future is to invent it." ~Alan Curtis Kay (born 17 May 1940)
(p.s. sorry about the typo in the subject title, wouldn't let me correct it.) ; (