That's awesome! I've tried magnetic collar tabs but they are more versatile because they even match shirts that don't have a collar tab. It may seem like a small thing, but it turns shirts that I would consider unwearable due to a "non-standard collar" into premium garments. The downside, of course, is that they're disposable: the adhesive is strong enough to last all day, but other than that, try your luck. Remember to take them off and throw them away before laundry day.