You can make STEAM CRANK by combining STEAM TUBES and FIRE HYDRANT. This item belongs to building category. Using growspray would be madness, better get a time machine. Nice experience you find in these blocks. Hitting it will break it but you need to count the hits yourself. Seed mathematics is very complicated, but you should get at least 1 seed back from splicing STEAM CRANK. Profiting with this might be questionable. Blockratio of STEAM CRANK is a mystery. Maybe you can check the wiki for <a href="https://growtopia.fandom.com/wiki/Steam_Crank">steam crank</a>