Tree Stump Pen Holder With A Tree Hole 樹樁造型筆筒（附樹洞）

It's a pen holder with the shape of a tree stump. I attached a tree hole for, in my case, small eraser but turned out to be slightly too small on the first try (the v1 file, and the printed one). So I tweaked it and made the v1_1 file but didn't feel like to reprint it for now.

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這是一個樹樁造型的筆筒。 我在一側加上了一個樹洞，希望能用來放橡皮擦。但印出來之後卻發現稍微小了些，因此調整了v1的檔案，設計了v1_1。只是，v1似乎還是堪用，所以目前是懶得再重新印了。