You must have LABORATORY and COMPU PANEL to make WHATCHAMACALLIT. This item belongs to signs category. Using growspray would be madness, better get a time machine. Farming this will make you experienced farmer pretty quick, if you know what I mean. WHATCHAMACALLIT can be broken. By default you should get at least 1 seed back. Profiting with this might be questionable. Will you get enough blocks to build something? You just have to find out yourself.