od: display verbatim utf8 characters along side dump

[Avid Seeker]

```
$ echo -n this is a 🐕 | od -cx
0000000   t   h   i   s       i   s       a     360 237 220 225
          6874    7369    6920    2073    2061    9ff0    9590
0000016
```
Can od print UTF-8 characters verbatim instead of encoding them in octal? 

I guess as its name suggests, that's not possible. But if it can do it
for ASCII characters what prevents it from also applying it to UTF-8
characters?

If it's not possible, any suggestions or alternative tools would be
apprecited.

Avid