Please help my a with a Nintendo DS lite and Little brother dillemna?

Well you could buy one off of ebay for very cheap.I would more or less take my bros and not care if he were mad or not.Also you could try and look up people with the same problems.If neither of these options work for you I would recommend you make him work off the cost of the ds.Like doing your chores and stuff like that.Hope this works for you.:)