new objectTest; // top of the script
objectTest = CreateDynamicObject(19353,x,y,z,0,0,0,0,0,0,200.0); //under gamemodeinit
SetDynamicObjectMaterialText(objectTest,0, "your text here" , OBJECT_MATERIAL_SIZE_256x128, "Arial", 28,0,-1,0,OBJECT_MATERIAL_TEXT_ALIGN_CENTER);