Estonia alone can’t, but with Finland, Sweden, Poland and eventually Germany, Denmark and Norway joining the fight russians have pretty slim chances to operate from Petersburg if they’re willing to challenge NATO. The bay is narrow enough that both finns and estonians need to be careful not to shoot each other across it with just modern artillery. That combined with pretty capable airforce and navy from Finland and Sweden says that Baltic sea is off limits to any kind of military actions. And additionally, an F-35 from Finland and a Gripen from Sweden could both reach St. Petersburg in about 30 minutes, so good luck to getting anything out of the harbor before it’s out of order.
Imperial, adjustable, left handed wrench. Or left handed any common hand tool (hammer, spanner, screwdriver…). Muffler bearing. Light bulb for the crank case. Blinker fluid. The list goes on.
And, within reason, I think those are pretty decent pranks. No one gets hurt, many get a good laugh out of it, including the one looking for a two headed hammer if executed properly.