I have a power bugle from ELK, pretty easy to use. Though I can't figure out how to chuckle with it.
Cow calls I have a few:
- ELK cow talk, this is a bite/blow model
- Primos hyper lip. This is a blow on the reed, but use your lips/mouth to vary it. Wife couldn't use this due to the vibrations on your lips bothering her
- Hoochie Mama, about as easy as it gets, but that also means limited in the variable sounds
One thing to try, I have a VERY narrow and high pallet. If I use a full sized diaphragm that dang thing wraps across my pallet and down my teeth, I can actually bit on it between my teeth while it's nestled up in the pallet! I've had good luck with youth calls.