Rocket Minecarts

Rocket Minecart: it drains 1 firework from your OFFHAND/MAINHAND every 10 (or so) seconds and they have the same speed of 25 blocks per second HOWEVER minecarts WILL derail if going at full speed so you can slow down by (PC: pressing S Console: going backwards) so that you don't derail, to not derail you must be going less than 15 blocks per second or else you'll fly off the track at high speed, maybe giving half the fall damage because you had something to brace with because you were in the minecart, and you can make a high rail to not fly off at the turn, but it costs extra iron (or even gold to add another use to that giant gold stockpile) to make, and the fireworks are the normal price and firework length affects time between firework consumption. (I think this would be a cool fix for slow minecarts) The crafting recipe for rocket minecarts could be like an item frame on each side and a minecart in the middle.