It is okay to combine smaller bricks to make the size you need.  For example, if you need a 1x4 brick, you can use two 1x2 bricks.

It is also okay to use a different color.

If you want to keep all 16 of the designs without taking them apart, you will need the following bricks:

Black 23 — 1x1 8 — 1x2 9 — 1x3 9 — 1x4 3 — 1x6 3 — 1x8	Blue 19 — 1x1 5 — 1x2 1 — 1x4 5 — 1x6 2 — 1x8	Brown 8 — 1x1 21 — 1x2 27 — 1x3 12 — 1x4 5 — 1x6
Green 8 — 1x1 22 — 1x2 12 — 1x3 5 — 1x4 1 — 1x6	Lime 11 — 1x1 4 — 1x2	Orange 15 — 1x1 32 — 1x2 1 — 1x3 7 — 1x4
Red 6 — 1x1 3 — 1x2 4 — 1x3 3 — 1x4 1 — 1x6 3 — 1x8	Tan 6 — 1x2	White 22 — 1x1 25 — 1x2 16 — 1x3 4 — 1x4 2 — 1x6
Yellow 28 — 1x1 24 — 1x2 29 — 1x3 2 — 1x4 3 — 1x6 3 — 1x8

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