Apparently, this user prefers to keep an air of mystery about them.
21 How to draw a cube completely filled with water, the other with water by half and the last leave it empty? jul 20
19 How to make dominoes falling? dec 13 '13
17 How to draw a cylinder chessboard? feb 2 '15
15 How to draw these coins? jan 7 '15
12 Where can I find on/off symbol? feb 2 '14
6 How to make this figure? oct 4
6 How to draw a curve free? sep 21