I know nothing about either for use on the Arduino, but I know what they are.
The "Attitude indicator" is sort of a "spirit level" and a VSI is a thing which shows if you are going up/down and how fast.
If I got one of these multi axis "gyroscopes" could I make one? Ok, and maybe an accelerometer
I have seen these circular LED bars which should be ok to indicate your attitude.
And if I add another accelerometer, I could also get horizontal speed. The speed could be shown with a straight LED bar.