Wrapping image around Latte Mugs

Hi,
I currently print Art Cards and Giclee prints for a variety of artists and the intention is to now produce a range of other item using Sublimation. One of these is to print onto Latte mugs. I see that this is possible in Photoshop to make an image 'Arc' to fit the shape but I use GIMP for all my work at present and cannot find an easy way to do this. I can create a blank template but getting an image to match the curve of the template is defeating me. I have tried the 'Curve Bend', 'iWarp' and transform tools in GIMP but none of these seem to do the job as well as the Photoshop solution. Has anyone else had this problem or do you know of any other software that can do this? (I use Linux as my operating system).
Thank you in advance for any help.
John

Thanks to everyone who looked, have found solution with the help of the GIMP forum.
J