Here are some ideas for first aid kits. It's a good thing to have one in the home and I recommend each scout having a small portable kit (see the hiking first aid). There are a lot of cheap first aid kits available that are perfect for home and bits can be used to make up a scout first aid kit. I really recommend the scouts setting up a personal first aid kit while in lockdown.
You can get a 210 piece family kit for $20 that can supply a family one and a scout one.
Now this does not have to be specific container for the scouts. You can use a zip lock bag to create a personal first aid kit for the scouts.
Another solution is to use a dry bag. Kmart has cheap 2L dry bags which you can stick a cheap sticker from Officeworks on it to make it a first aid bag.
https://www.kmart.com.au/product/2l-window-dry-bag/3115837