[Raweresh]

Код:

native SetPlayerAttachedObject(playerid, index, modelid, bone, Float:fOffsetX = 0.0, Float:fOffsetY = 0.0, Float:fOffsetZ = 0.0, Float:fRotX = 0.0, Float:fRotY = 0.0, Float:fRotZ = 0.0, Float:fScaleX = 1.0, Float:fScaleY = 1.0, Float:fScaleZ = 1.0, materialcolor1 = 0, materialcolor2 = 0);

Are you sure you have correctly arguments? And I think that wouldn't work. For first, in skin browser you see only skins, for second, that skins are in other virtual world. You can set player's virtual world in OnPlayerRequestClass and put objects in that virtual world too, but I think you can't attach any object.