Neo: kamen rider Hostess

Ice cream sclashjelly(obviously)

Motif: Ice cream

Transformation jingle
"SQUISH! STREAM! OVERFLOW! ICE CREAM IN PARTY! BRAAAAAA!"

Weapon: twin breaker, Ankylosuarus Fullbottle, Ice cream fullbottle.
(Ankylosuarus and Ice cream are a best match)