Marvin, your parents are COMPLETELY wrong on this one- parents are not always right.
It is ok for boys to have teddies, ABSOLUTELY!
I understand your need or want for a teddy, i have it too.
Jesse is right, LOADS of guys here have teddies, i'm sure a few will jump in and tell you themselves. It is even ok for grown men to have teddies. (and thanks Jesse- Plushie is a new word to my vocabulary- never heard of that before).
I have a teddy! i have a few, my favourite teddy is one that i had from when i was small called Rupert (Rupert the bear). All my teddies are from when i was younger, but i welcome new ones too.