If you are shopping for your kid, no issue, you will find Spiderman costumes for everybody. From muscle chest heavy Spiderman suits for children to adults to chic, Spider Gwen looks for fighting against the crimes. Show Some Love with Infant Halloween Costumes for Babies. Yes, you should make sure that your babies are ready in their first Halloween costume! You can spruce up like her, regardless of what age you are, or size you are.