比如蓝牙要FCC，儿童用品要CPC

1. Simple standalone silicone teethers (e.g., textured teething mitts, keys, or rings) that focus only on gum relief at a lower price point
2. Basic plastic stacking cups, which deliver the stacking/developmental play benefit more cheaply and are widely available in dollar stores and big-box retailers
3. Household-safe stackable items used under supervision (measuring cups, silicone bowls, large nesting containers) as a no- or low-cost substitute for stacking play
4. Multi-piece baby sensory toy bundles that include stacking and teething functions alongside other activities, reducing the need to buy a dedicated stacking-ring teether
5. Library, daycare, or playgroup toy access for developmental stacking play, paired with an inexpensive teether at home instead of buying a 2-in-1 product
6. DIY chilled washcloths or food-grade silicone spoons used for teething relief, combined with separate low-cost open-ended stacking toys
7. Bath cups or nesting bath toys that double as stackers, offering similar motor-skill play with more use cases for the same spend
8. Travel-friendly stroller/car-seat toys with chewable silicone elements that cover teething and distraction needs without requiring a dedicated stacking set

有替代品会影响你的风险