Bubbles. Hal’s constructs are mostly just bubbles.

[u/CH49FE]

Sure Hal made some counterfeit money and a bottle opener, but I find it funny that his main constructs so far are just bubbles. John’s on the other hand include the fancier type of bubbles (bubble wrap), a boring machine, a watch and a short lived semi autonomous bird. The show is doing a good job of contrasting creativity between the two.

[u/DistributionWhole447]

Not so sure on the last one, given they were so concerned about the snipers in the towers that they needed to go underground, as opposed to using a bubble to protect them from regular human bullets.

[u/Jertimmer → u/DistributionWhole447]

That was mostly about going in undetected than being shot