I bought this last year, and it works great, but it needs a much larger yard than I have. $10.

https://www.amazon.com/dp/B00002N6AN/ref=cm_sw_r_em_api_i_c_KJUfBbK8RMKNF

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"The most miserable people are those who are obsessed with themselves; the happiest are those who lose themselves in the service of others."  - Gordon B. Hinkley