0paulcauchonBest Answer 7 years ago ReplyUpvoteThis is probably**** your best bet....For this you will need: Fiberglass cloth Fiberglass resin Waxed paper About 12 hours Cunning1) Surreptitiously* gain access to someone else's tub (SOT).2) Adhere a waxed paper to the SOT such that it sticks smoothly to the surface of the tub.3) Create a fiberglass mold** of the SOT according to the directions on the resin.3.1) Meticulously clean the SOT. denatured alcohol and a lint free cloth work well for this.3.2) Allow the SOT to dry completely, and wipe it out one more time to make sure there are no contaminants left in the SOT.3.3) Prepare your resin by carefully adding the hardener to the resin in the prescribed amounts.3.4) Cover your fiberglass cloths in the resin and then apply them to the covered tub.3.5) Paint a smooth layer of fiberglass resin on the the cloth. Make sure you get all the air out.3.6) Wait two hours until the surface of the glass/resin compound is firm yet tacky. Mix a new batch of resin and add another layer of your compound. Repeat to a sufficient structural thickness.3.7) Enjoy a drink and teach your canary a new song*** while you wait for the fiberglass to cure. Probably around 4 hours, which means you might be able to get two or three songs in, if you have a particularly bright canary.4) Carefully remove the hardened fiberglass tub out of the SOT and peel away the waxed paper from it.5) With great haste, remove the SOT from its fittings (by means of force if necessary), leaving the new fiberglass tub in its place.6) While distracting the owners of the SOT with your canary's new song(s), abscond with the SOT. If found sneaking out, reassure the owners that it is a matter of national security, and you must complete your tests at the lab.7) Never come back.8) ????????????????????9) Profit! I hope these concise instructions help you in the right direction. Happy bathtubbing! *I've had the most luck of working under the guise of The Bathtub and Sink Grout Inspector (BASGI for short, pronounced bahz-GEE). Success here is dependent on three things: The mustache, the badge, and the element of surprise. **Be sure to have proper ventilation or at least one Miner's Canary when working with fiberglass resin. Thick gloves and some safety goggles are probably a good idea too here, though you'll probably have difficulty finding them in proper sizes for your canary. ***The Beatles' Julia is a rather lovely canary tune. **** This solution is provided on an as is basis. Any harm done to you or anyone else (canaries not withstanding) during this process is the sole responsibility of you, the bathtub creator. If successful, no credit to me is necessary; simply remember me fondly when you tell the tale of your adventures to your grandchildren. If unsuccessful, I'm fine with you remembering me less-than-fondly in your tales.