Answer:
I'm an animal. I love marching. I always wear a tuxedo. What am I?
I am a popular afterlife location to send evil people
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see. What am I?
I am the noise Santa's reindeers make
What is seen in the middle of March and April that cannot be seen at the beginning or end of either month?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.