I followed the trail of the ToolstripMenu in designer to the following line:
(System.Drawing.Bitmap) new System.ComponentModel.ComponentResourceManager(typeof(FormMain)).GetObject("saveToolStripButton.Image")
I can duplicate that and use it my form code as long as the toolstripMenuItem is on the form. Is it possible to access these icons directly instead of having to add a Toolstrip and its standard items?