My current Sizing Tools at Home

One of my best Tool Investments
I bought this kit made in Taiwan during a trip to Hong Kong and this is really a kit I should have bought a long time ago. I had a "home made" pusher already, but the bracelet block is really a great help and will prevent bracelets from being scratched. And imagine, the whole kit costs only USD 6, that is a fraction of what the polishing of a "messed up" bracelet will cost. And I am not even mentioning the anger and grief about having just "ruined" a new bracelet.

Sometimes a broken Screwdriver is a good Thing
The thinner of the two pushers had been "home made". A screwdriver of a cheap USD 2 "Precision" Screwdriver kit (you all know those black plastic boxes I guess) broke off and instead of disposing it, I reduced the length to about 8 mm and filed the sharp edges off. The watch case holder was really just a compromise, since it was in my collection and since it was made of plastic, I used it because of the holes on the top, it was easier to push the link bars out that way.
A pair of good pliers with smooth jaw surfaces inside is often used, when link bars do not fall out completely. I prefer then to pull them out instead of pushing them through with a longer pusher. An other advantage of using the pliers rather then a long pusher is that you will not drive your pusher onto the bracelet with a sudden impact if the link bar suddenly loosens.
Sometimes a watchmaker hammer is also a good tool, I often use it if the link bar does not move after trying to push with a pusher at first. Many times careful hammering loosens the link bars, so they can be pushed out easily.

Resizing the SKX779K is not that easy ... #%$^%&
I once used a long pusher when resizing my Seiko SKX779K's bracelet and I ended up having those tiny link bar tubes stuck on my pusher. It was hard to take them off and in addition I had to squeeze them back to the original diameter so they would grip tightly on the link bars and prevent them from falling out. If you are not sure, whether those tiny retaining tubes are used, you better use a pair of pliers to pull the link bars out.