BTC Endcaps should have come in week 7/23 POG workload. Dollar Spot had a huge BTS set a few weeks back, AND there is a SPL in that 7/23 POG on the Lanes that allows you to make your own endcap.
Personally, I strongly urge against putting supplies such as pencils, pens, paper, etc. on a lanes EC, you will be filling that every time you turn around, not to mention adding a 3rd or 4th location to the DPCI.
Our store used the lanes SPLs to focus more on BTC, and used the open SPL to place low-dollar small appliances for dorm students (ex. coffee maker, toaster, alarm clock, etc.)