Modular bird spikes

I really like pigeons but I don't like cleaning their shit so recently I have embarked on a quest to stop them from nesting on my balcony for the third time. Those models are the results of that struggle.Spikes can mounted to different surfaces (e.g. balcony railings) using various clamps and frames. You can connect spikes into a series by printing a wider clamps and inserting spikes from both sides. Spikes have rounded corners so that they shouldn't harm the birds - just make the surfac