CCF gives patients heart pillows, but IF you want extra to keep around the house or to keep in the car, I really recomend buying a small throw type pillow (or even sewing if you have a machine) NEW pillows to have close to your incision right after surgery.. and not pillows you have around the house..just to be safe. Also from our experience, the stretchy pillows with the little foam beads didn't work as well as the fleece filled ones since the little beads tend to squish around and there isn't much cushion on the spots you are holding to your chest.. (Justin made 100s of pillows for kids having heart surgery as his Eagle Scout project so spent alot of time trying different things. and sizes .ended up using hypo allergenic polyfil and fleece)
We looked at those incisions shield before and Justin has alot of experience recovering from having his chest open and thought they looked like they would just be annoying and not very useful.
Just so you know every hospital is different, Justin's last few OHS he only had a bandage coverring his incisions a day or 2 post op, some leave them on longer some short time, so if they leave the bandage on longer don't think that means anything is wrong ect.
One thing we did buy for the car that he liked was one of those fleece, (well sheepskin I think it is) covers that look like tubes that go on the seat belt shoulder strap