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Try placing a piece of rubber (with a balance of elasticity and hardness) between the wood and the floor and your floor will not be damaged.
This is not a bad idea, so far it is working good with just wood
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Wow, you also have capsules (but you are silent about it 
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Glad you noticed! There are also many other vases and pots where we can hide the washers, the capsules would be the most basic optionQuote
I just wanted to say that it’s high time you offered BitJig for sale, but it turns out that your website already has a “shop” tab.
Yes, I would be a bit concerned if nobody noticed the shop
. I added a "bitcointalk" coupon for a 5% discount + another 5% discount when paying in bitcoin (in case somebody ever reads this thread 
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This is an affordable alternative for those who don't have a 3D printer (who would buy 3D printer for the sake of printing only 1 Jig?).
This was the whole approach of the idea
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i don't think they do have access to your safe deposit box. at least the one i saw it has 2 key holes and a key has to go into each one. one from the bank and one from you. and so they can't open it without you. it's not like mail boxes etc where they can reach in your box from the backside 
I would not feel safe with my seedphrase inside of a bank safe, depending on the country of course, but in some places it might be more risky than having them at home.
As fillippone said, washers are not for air transportation, imho, the washers approach is a good starting point compared to a piece of paper. There are better options, of course (for instance, memorizing them), but there is no perfect solution, each one has its flaws and advantages.
You could even disassemble a 12 washer set, mix some of them with coins and get them through the airport x-ray machine disguised as coins, but I would rather use a hardware wallet for air transportation.
The best solution would be either to keep the words in your mind, memorized, or some sort of digital puzzle which nobody else knows. But the washers is a good solution when combining them with a passphrase or a multisig solution.