Ninja single serve travel cap

The 1000 watt professional Ninja brand blender single serve cups normally have a blender module that closes them off on top. This is not ideal for my on-the-go lifestyle so I designed this replacement cap that does not have blades attached.

For it to work properly though you need at least one “Scunci No-slip Grip Evolution Bright Jelly Ponytailers” to use as an O-ring.