Reddit reviews McKesson Performance Plus Double Edge Prep Razor Disposable - Box of 24 - Model 16-rz24

An article on Sharpologist https://sharpologist.com/2016/04/traveling-de-carry-2.html suggests DE disposable medical prep razors, which you can get on Amazon, e.g. https://www.amazon.com/McKesson-Performance-Double-Razor-Disposable/dp/B002C68I6I/ . Since the blade is non-removable, they are ok in carry-on luggage, and I haven't had any problems. Note that you do have to buy these in quantity, sometimes 100 of them.

Another alternative that people have suggested before is disposable single blade razors, such as the Bic Sensitive, also available on Amazon, https://www.amazon.com/BIC-Sensitive-Single-Blade-Shaver/dp/B01AKGRDBW/?th=1 , and at many drugstores (at least where I am).

Of course, both of these are plastic, so it won't be like shaving with your slim adjustable (which is also my favorite razor). But I've found them ok for trips, and I don't like checking any bags. I can usually get three shaves from either of these (and that's typically what I get with razor blades too). The Bics are better than I expected.

Also, following up on what u/Matty_Joestar said, I do have two plastic Dorco PL602's. With the blade in, the Dorco looks very much like a disposable prep razor. So before I bought the prep razors, I would just put a blade in each of the Dorcos and put them in my shaving kit. I never had any problems with TSA, but this is technically not ok according to their blog, https://www.tsa.gov/blog/2010/08/17/safety-razors-and-disposable-razors .

Yup, there is. I swear Personna made one, but the first I found on Amazon is this: https://www.amazon.com/McKesson-Performance-Double-Razor-Disposable/dp/B002C68I6I/ref=sr_1_15_a_it?ie=UTF8&qid=1494783785&sr=8-15&keywords=Disposable+razor+double+edge