Female led relationships discussion

Hello everyone, I’m not entirely certain this is the correct spot for this, but I’ll give it a shot. For quite some time now, my Mistress and I have been considering getting a tattoo (I already have one). I really want to choose a design that expresses both my love AND submission to my Mistress in a subtle manner. We (and she) aren’t fans of the typical BDSM symbol often used for tattoos with a BDSM theme, so I’m looking for an alternative. It shouldn’t be too obvious, like whips and cuffs or similar imagery. For her and me, it needs to clearly show my submission to her, but remain less apparent to others (for instance, in the sauna). I know it’s not a simple task, which is why I’m asking for your assistance. Does anyone have ideas or perhaps already possess a similar tattoo? Any input would be greatly appreciated. Of course, I don’t expect a fully formed idea given the personal aspect of this, but any concepts or suggestions could help me design a custom tattoo that suits both my Mistress and myself. Thanks in advance!