diff --git a/Covid19_Spike_Model/ThinNeckSpikeMold1.stl b/Covid19_Spike_Model/ThinNeckSpikeMold1.stl
new file mode 100644
index 0000000..5ac477d
Binary files /dev/null and b/Covid19_Spike_Model/ThinNeckSpikeMold1.stl differ
diff --git a/Covid19_Spike_Model/ThinNeckSpikeMold2.stl b/Covid19_Spike_Model/ThinNeckSpikeMold2.stl
new file mode 100644
index 0000000..0f8ef38
Binary files /dev/null and b/Covid19_Spike_Model/ThinNeckSpikeMold2.stl differ
diff --git a/Covid19_Spike_Model/ThinNeckSpikeMold3.stl b/Covid19_Spike_Model/ThinNeckSpikeMold3.stl
new file mode 100644
index 0000000..dc8c1b0
Binary files /dev/null and b/Covid19_Spike_Model/ThinNeckSpikeMold3.stl differ
diff --git a/Covid19_Spike_Model/spike_full_smootherer.stl b/Covid19_Spike_Model/spike_full_smootherer.stl
new file mode 100644
index 0000000..f560778
Binary files /dev/null and b/Covid19_Spike_Model/spike_full_smootherer.stl differ