NUK Orthodontic Pacifiers, 0-6 Months, 5-Pack – Link

Amazon has this currently marked down to just $3.98.

• Orthodontic nipple shape is asymmetrical with a scooped bottom: Flatter to allow for more room for natural sucking motion, slimmer to reduce pressure on jaw and teeth, and narrower to help prevent teeth misalignment
• Natural shape is modeled after mom’s nipple while breastfeeding and won’t cause nipple confusion (Based on Market Research, 2017, tested with 307 pacifier users)
• Heart-shaped shield fits perfectly under baby’s nose for easy breathing
• Glows in the dark to help babies and parents
• BPA-free; silicone nipples; top-rack dishwasher safe; Available in sizes 0-6 months, 6-18 months