Ohioguy wrote:
I just can't figure out how to install any sort of tile without
busting up the sidewalk.

Make a big hole outside of the sidewalk, and use a hose and some
suitable lengths of PVC drain pipe or similar to tunnel the pipe
under the sidewalk. The "Tunnels" episode of the "Building Big"
TV series on DVD demonstrates the technique in a family activity
segment. The episode may be borrowed from a local public library
or maybe from Netflix.

You might also rent a cement cutter and cut a tidy slice out of
the sidewalk.

Una