Its probably worth mentioning that some of those (like the sun cross) are also used as neo-nazi insignia. I am completely in favour of still using them (we shouldn't let nazis spoil century old symbols), but I felt it was important to note.

Here, now it's a meme.

many of these have multiple different meanings and interpretations

Some of those symbols mean different things in different practices. Eg, wheel of karma but spiral is the wheel from a different perspective, eg repeating lessons with more advanced knowledge.

Granny Weatherwax, "Can't abide that sort of thing."