I recently bought a Silhouette Cameo in hopes of making some vinyl mugs to sell. I used to hand paint them, but that takes a lot of time, and hoped using vinyl decals would be easier. I see so many vinyl mugs being sold and everywhere I've researched says that Oracle 651 outdoor vinyl works great for mugs. However, every one I've done, the vinyl peels right off. I barely washed a test mug and the decals were peeling up and coming off. Does anyone have any suggestions? I'm using blank dollar store mugs and have washed them very well before applying the vinyl. I even tried HTV and applied it with an iron, but it peeled off just as easily.