Continuing this project from the last couple years. This does leave out some stuff that may be useful, but can't really be prepped ahead of time, like fake blood capsules or frosty bone chips. Those have had some uses, but you either already have them from previous Halloweens, or you don't.
A list of potential things to work on getting prepared for Halloween, based on previous years:
- liquified Eclipse/Slags antidote: For those really in favor of (or against) a crazy etheric Halloween
- moving apple: It's possible these might be handy again for the Eclipse folks
- juryrigged antenna: We moved on from Silver Towers last year, but it's always possible that hijacking supplies from drones might come up again
- Learn the recipe for Silver Courier filtering: See above
- Construction materials: Various pieces that may be used for setting up mazes, sound systems, etc.
- polysteel support
- thick cabling
- capacitor array
- shivering capacitors
- magnetic coil
- memory stick
- signal buffer
- steel length - Requires killing the Energized Serpent, so this in particular might take some prep
- hound crystal/artificial hound crystal - These seemed to be the source of the etheric stuff for 2019's Halloween, so it could happen again, though the sound system seemed to be pretty specifically tied into that Halloween's events, so who knows?
- Decorations: Most of these will likely be found as part of the event, or be stockpiled still from previous years, but there may be some stuff that can be prepped in advance
- paper bat? These might be used again.
- Animatronics? It's possible that some previously created items will be usable again, but in this case it's probably best to hang onto your animatronic motors
- foam brick wall/skull pile? Again, simple crafting, so no need to use materials up in advance if you've still got some from prior years.
- decorative webbing can be crafted now, as long as you have some to start with. Craft with silk strands or spider skein to end up with multiple decorative webbing.
- Last year having lots of cyberware available was good, but there's no guarantee that'll be of use again this time. Having some available to salvage for artificial bone might be handy, though. If we do end up back in the Parking Garage, the Skeletal Tree could even still be there.
- Other stuff
- thermos of joe/horrible black coffee: Have been used to help out security in the past
- refined petrol: Has been used to burn stuff down
Also a good idea to get your Chess skill up, so that you can get extra information from Arthur J. And as of last year, there was some use for Pickpocketing skill as well. Unless you want to record results for getting caught, having your skill worked up a bit will probably be good if that comes into play.