First you have to downsize your old t shirt if its to big like mine was :) next step is to cut larger image of your applique and attach it to the back side of the t shirt... use a sewing machine to line your applique but on the inter side of the applique... then carefully cut fabric from your outer side of the t shirt... be careful not to cut the applique or the thread :) After that just assemble your t shirt and wear it :)))