You can do without splices at all, just fish the cable through the wall with connectors and all. The duplex LC connector can be disassembled, and with a bit of

You can do without splices at all, just fish the cable through the wall with connectors and all. The duplex LC connector can be disassembled, and with a bit of tape to keep things together you can get both fibers through much more easily. If you're lazy, you can just use a premade cable that's longer than you need. A slightly prettier solution is a keystone jack.