Halloween costumes for kids [1] have adapted and changed over the years, mostly following pop culture and media trends. Since the 1950s, kids' costume ideas have definitely come and gone [2], some reappearing over the years due to movie remakes and TV adaptations of old classics [3]. If you're curious as to which costumes have been around for the past 70 years, or you want to see which costumes were "one-decade wonders," scroll through for the most popular kids' costumes [4] since the 1950s.
2000s
Captain Jack Sparrow
Teenage Mutant Ninja Turtles
Links:
[1] https://www.popsugar.com/family/Easy-Halloween-Costume-Ideas-Kids-24811433
[2] https://www.popsugar.com/family/DIY-Kids-Costumes-38580399
[3] https://www.popsugar.com/family/90s-Movies-Show-Your-Kids-40166733
[4] https://www.popsugar.com/family/Most-Popular-Costumes-Kids-Year-42289324
[5] https://www.popsugar.com/family/Easy-Halloween-Costumes-Moms-25400151
[6] https://www.popsugar.com/family/Baby-Carrier-Halloween-Costumes-42305839
[7] https://www.popsugar.com/family/Family-3-Halloween-Costumes-45180023
[8] https://www.popsugar.com/Harry-Potter
[9] https://www.popsugar.com/Michael-Jackson