The photo shows the heart joined to two other squares (forgot to take separate photos).
Single Outline Heart (medium sized) for 6″ loom
medium sized heart single outline
You can also add beads to the heart. (See this blog post.)
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A Facebook friend wrote out the directions for this square. I haven’t proofread them, but maybe they’ll be helpful to you:
SOLID HEART – MEDIUM SIZED – 6 INCH LOOM
Rows 1, 2, 3 & 4 – P
Row 5 – P22, U3, P22
Row 6 – P20, U3, O1, U3, P20
Row 7 – P18, U3, O1, U3, O1, U3, P18
Row 8 – P16, (U3, O1 X 3), U3, P16
Row 9 – P14, (U3, O1 X 4), U3, P14
Row 10 – P12, (U3, O1 X 5), U3, P12
Row 11 – P10, (U3, O1 X 6), U3, P10
Row 12 – P8, (U3, O1 X7), U3, P8
Row 13 – P6 (U3, O1 X 8), U3, P6
Row 14 – repeat row 12
Row 15 – repeat row 13
Row 16 – repeat row 12
Row 17 – repeat row 13
Row 18 – repeat row 12
Row 19 – P10, U3, O1, U3, O1, U3, P5, U3, O1, U3, O1, U3, P10
Row 20 – P12, U3, O1, U3, P9, U3, O1, U3, P12
Rows 21,22,23,24 – P