I understand you're frustrated about toddler parties where older kids end up having all the fun. Your idea for an inflatable play yard designed specifically for toddlers sounds like a great solution! Here are some key features I picked up on:

• Inflatable design for safety and portability
• Matting for comfort
• Grassy areas to create an outdoor feel
• Plenty of plush toys for cuddling and play
• Toddler learning toys to keep little ones engaged
• 11 Piece soft play mats 
• roller coaster 
• ball pit 
• bounce house 
• YOUR CHOICE OF 5

This setup would create a dedicated, age-appropriate space for toddlers to enjoy themselves at parties. It addresses the issue of older kids dominating activities and ensures the littlest guests have a safe, fun area all their own.