You can get colour golf tees by the 50 pack for a few £ / $ - Check the sort of turf will be ok with being skewered.
I'm sure sausage marks would be fine for dolly and crane marks.
Metal T's are great, lots of gravity to them. Rubber marks are a good DIY option.
Spray chalk is a thing. canned air held upside-down to freeze it then brush it loose for when you're done.
I'm sure most 2nd ACs will have that sort of thing in their kit already or given notice could sort out such things for you.