You can't 'motivate' someone to stop self harming. It's not that simple. he needs a professional. e.g child mental health professional.
For a 12 year old boy, the best underwear is the boy shorts.
There is not a specific costume that is the best for an 8-year-old boy, the best thing to do is to explore his interests and then allow him to pick a costume of a character that is interesting to him.
The best thing to do is tell him how you feel.
The cowardly lion outfit would be the best outfit for your 4 year old boy.
ipod nano or touch is best
A coputer console
dont
He wants to know how old you are??? Thats my best guess...
A small Trombone.
A poo!
A webkinz they have girl and boy ones