There is a new tool available for Sparkers: mkusb

What is mkusb?

The mkusb tool was developed to make it simpler and safer to create boot drives with the method to flash or clone an iso image or a compressed image file. It is using dd under the hood.The target is a mass storage device, often but not always a USB drive, sometimes an internal drive or an eSATA drive.

Installation:
sudo apt update
sudo apt install mkusb

or via APTus (+ sparky-aptus-extra 0.2.15).

mkusb

The mkusb Launchpad repo: launchpad.net/~mkusb/+archive/ubuntu/ppa