These PVC parallettes are an awesome piece of DIY kit - will get you on the path to doing planches, L sits and handstand variations in the comfort of your own living room.
Standard rubber bands are an ideal tool for exercising your hand extensors and strengthening your ‘reverse grip’. Limber up your wrist with some light movement and stretching then place the rubber band over the outside of your fingers and thumb so that you feel resistance as you open your hand and spread your fingers. You can slowly open and close your fingers for multiple reps, or practice static holds: holding your fingers open for 30 - 60 seconds against the resistance of the rubber band.
We spend a lot of time inadvertently strengthening our grip (whether it’s from lifting weights or gripping objects in your day-to-day life), so it’s a good idea to try to balance your grip strength by performing these kinds of exercises a couple of times a day.
A crash course in odd object lifting - covering a range of exercises using stones, kegs, tyres and ropes.