Rapports are usually Euro Knits - it just seems to be a more common design option from European fabric makers, so you have to look in shops that carry those (mainly online if you live in the US). Some US based custom fabric groups design them too, but usually have a limited-time only, pre-order availability so that's another potential source (more on those here).
I'd made sure to leave a 1/4 inch white border around my bears so I wouldn't have to stitch into the design. I like to use a triple stitch, which is a straight stitch that does 3 overlapping rows (rather than the side-by-side the symbol looks like).
It gives a nice thick outline like factory-made appliques and also has some stretch to it.
I've washed this a number of times and the applique edges have stayed nice & flat - no curling, so this technique definitely works.
My guy LOVES his bear outfit. He's worn it at least 4 times in the past month and despite being rough on clothes 9being a normal 2 yr old), it's very durable and still looks freshly made. Euro knits tend to be high quality, so they're worth splurging on because they look great longer...not to mention the designs are beyond cute.