[X] Try to cobble together a submersible out of scrap, you've come too far to give up now -[X] Have you cyberdevils look for designs of small submersibles to prepare a simplest possible design for you while you are looking for scrap to reuse in the construction. -[X] Use excellency: Crafts (Mechanics) -[X] Stunt: "Well, we are in an amusement park. Let's go for a ride, shall we?" you ask your companions, before venturing out to gather everything you need. And it's surprising what you can find. A Flying Turns sled, one large enough that you could sit in your father's lap comfortably and there would be place left for Lydia, to serve as basis for the machine. Helium gas bottles from old air balloon kiosks. Windows from a burned down dance hall. Wiring from various places. As you look at the gathered scrap, and concentrate, multiple robotic manipulators spring into existence around you, ready to follow the design you based on what your faithful electronic minions found. The sled is covered in metal sheets, welded together, the gas bottles are renovated and made into both an air supply system and emergency thrust, a long length of hose and some plastic bottles becoming individual air supply channels in case of hull breach. Pieces of broken windows are heated, and then reformed into portholes. An old roller coaster engine is given new life and a serious tune up to drives the propellers, freshly made from a pair of old weather vanes through a series of newly cut gears. A complicated mechanical steering system takes shape from random pipes and chains. A pair of gas powered harpoon guns, fashioned from some pieces of rebar, guy-wire and yet another gas bottle take place at the front . In the end, the only thing left to your companions is to decide on the paintjob.
[X]Write-In: Plan Thunderball -[X]Build boat out of ice -[X]Build diving gear out of steel,scrap and hardware store purchases -[X]Drive boat out to buoy and tie up there -[X]Tie one end of rope to lake buoy and dive ~60 feet to the lake bottom with the other end until you find underwater entrance -[X]Secure guide rope and glowsticks nearby and go up for rest of party -[X]STUNT: Your father thumps the packages down on the sand by the left of your workspace. "Rope, safety goggles, rubber hose, chemsticks." As a robotic arm immediately grabs for the rubber hose, on the other side he drops his second burden. "Ten gallon can of gas. Everything I could get out of Walmart." "Great" you reply. "I've already built and filled the air bottles and regulators, so give me another ten minutes and I should be done with the rest of the diving gear. Then we can gas her up"He looks along the shoreline to where Lydia is fending off curious ghosts from the beached glacial ice-boat she insists on calling Argo. "What engine did you end up putting in that thing?" he asks bemusedly. "Turbine. Easier to build, and less likely to fail if a warlock waggles its fingers at it."