Well now you have a minature TARDIS all to yourself. Let's hope it really is bigger on the inside considering how small it is. If you want to improve ...
Step 3: Slice the white lines
You're going to start by makng the precision cuts with the razor blade first. Notice the black trapazoid shaped tabs labeled with a letter. Some of these tabs have a small white line in the middle of them. Locate each tab with a white line in it and carefully slice the white line open.
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