Holiday tech gifts under $100 are the sweet spot: fun, functional, and festive without causing a budget hangover. From levitating globes that make desktops feel futuristic to Bluetooth beanies that keep playlists and ears warm, this guide rounds up useful crowd-pleasers and quirky stocking stuffers. I’ll help you narrow in on the right vibe (novelty versus everyday utility), consider battery and setup needs, and think through size/fit when apparel or wearables are involved.…