I made this up myself a while back, just thought I'd share:
The key to this riddle is only for you
Below are instructions, above this the clue
First strike the one near the head of a year
Then remove he who begins a cheer
Next take away the end of a tunnel
Then let us go to solve this puzzle
What you first took you must now take again
With three you are left, but fret not dear friend
Fattest to front and thinnest to rear
Add in two "eyes" and all becomes clear
Like the title says (I'm not very good with titles), you're looking for a number here.
Edited to add a hint:
As you can tell from the title, I tend to be very literal with my words.