Yep. We even have a free bit when writing hex numbers like 0x1234. Just flip that 0x to a 1x to indicate you are writing in little-endian and you get nice numbers like 1x4321 that are totally unambiguous little-endian hex representations.

You can apply that same formatting to little-endian bit representations by using 1b instead of 0b and you could even do decimal representations by prefixing with 1d.