Unless you've an excellent set of letter stamps or can grave your name tidily, an embossing - name - stamp is definitely the way forward.
Hey Derek
I've always thought of a "maker's mark" as a little way of saying "Hi" to the future and for someone beyond you to connect back to the person's hands that carefully made something. Anyway, personally I have never been a fan of stamps and branding irons, I long ago liked the simple hand carved "JK" that James Krenov used. See page 43 of "A Cabinet Maker's Notebook." I also appreciate his quote, "My little mark, when I remember to put it there, is because I have done all the work." After trying a couple alternatives, I settled on a little hand carved lower case "f." In your case a little lower case "dc" might be simple and nice.
Anyway, very nice work, those planes beg to be picked up and used!
Cheers - Bill
Cheers, Bill Fleming