diff --git a/sample-data/bowtie.snap b/sample-data/bowtie.snap
new file mode 100644
index 0000000..732d732
--- /dev/null
+++ b/sample-data/bowtie.snap
@@ -0,0 +1,6 @@
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diff --git a/sample-data/cycle.snap b/sample-data/cycle.snap
new file mode 100644
index 0000000..3895d78
--- /dev/null
+++ b/sample-data/cycle.snap
@@ -0,0 +1,8 @@
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diff --git a/sample-data/lollipop.snap b/sample-data/lollipop.snap
new file mode 100644
index 0000000..0e1fe4f
--- /dev/null
+++ b/sample-data/lollipop.snap
@@ -0,0 +1,24 @@
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