Honestly, since it's decoration and not really anything big... I would just use the physgun and welder, cheating it in through the mailbox and converting your save. I really hope nails are fixed, or some alternative is added, like the Welder from the Sandbox menu... or glue could be used on smaller objects, being far weaker but still at least stable to attach points....Hopefully The Developer Doesn't Feature Creep And Add 100 Different Things That Aren't fully Implemented And Won't Be Threshed Out For The Next Couple Of Updates, And Instead Fixes Existing Issues Or Mechanics (°°)～
i don't believe the physgun and welder work after save and reloads, that's the thing
i was considering using the welder, but it says it causes major issues if you save and reload and i'm not gonna tempt fate on that. As for the physgun, i don't know if it's true anymore but if you reload, anything you freeze with the physgun unfreezes and falls anyway