User blog comment:Kaido King of the Beasts/Chapter 882: Trident Mochi Bubblegum/@comment-103.14.60.167-20171020102638/@comment-24769684-20171020161918

Both Doffy and Kata have Devil Fruits allowing them to generate stuff, so it's not surprising that their awakenings are similar. For Paramecias who can manipulate their body like Luffy it could very well be different.